diff --git a/admin/panels/static/admin.static.write.tpl b/admin/panels/static/admin.static.write.tpl
index b2ea4b6..b24e8b1 100644
--- a/admin/panels/static/admin.static.write.tpl
+++ b/admin/panels/static/admin.static.write.tpl
@@ -1,6 +1,6 @@
 {include file='shared:admin_errorlist.tpl'}
 {static_block}
-{if $preview}
+{if isset($preview)}
 	<div class="row">
 		<div class="col-xl-12 col-lg-12">
 			<div class="card shadow mb-4">
@@ -21,15 +21,18 @@
 					<h6 class="m-0 font-weight-bold text-primary">{$panelstrings.head}</h6>
 				</div>
 				<div class="card-body">
-					{html_form}		
+					{html_form}
+					{if !isset($post)}
+						{assign var="post" value=""}
+					{/if}		
 					{static content=$post alwaysshow=true}
-						<input type="text" name="subject" id="subject" class="form-control input_gray input-max-width" placeholder="{$panelstrings.subject}" {$error.subject|notempty:'class="field-error"'} 
+						<input type="text" name="subject" id="subject" class="form-control input_gray input-max-width" placeholder="{$panelstrings.subject}" {if isset($error)}{$error.subject|notempty:'class="field-error"'}{/if} 
 						value="{$subject|default:$smarty.request.subject|default:$smarty.request.page|wp_specialchars:1}" />
 						<input type="hidden" name="timestamp" value="{$date}" />
 						<p>
 						<label for="content"></label>
-						<textarea name="content" {$error.content|notempty:'class="field-error"'} id="content_textarea" placeholder="{$panelstrings.content}" class="form-control">{$content|default:$smarty.request.content|htmlspecialchars}</textarea><br />
-						{if $sceditor_display!='disable'}
+						<textarea name="content" {if isset($error)}{$error.content|notempty:'class="field-error"'}{/if} id="content_textarea" placeholder="{$panelstrings.content}" class="form-control">{$content|default:$smarty.request.content|htmlspecialchars}</textarea><br />
+						{if $sceditor_display != 'disable'}
 						<script src="{$smarty.const.BLOG_BASEURL}/fp-includes/bootstrap/js/bootstrap.min.js"></script>
 						<!-- Here is the SCEditor -->
 						<script src="{$smarty.const.BLOG_BASEURL}/admin/res/sceditor/sceditor.min.js"></script>
@@ -75,7 +78,7 @@
                 </div>
                 <div class="card-body">
 					<input type="hidden" name="oldid" id="oldid" class="form-control input_gray" value="{$id|default:$smarty.request.oldid}" />
-					<input type="text" name="id" id="id" class="maxsize{$error.id|notempty:' field-error'} form-control input_gray "
+					<input type="text" name="id" id="id" class="maxsize{if isset($error)}{$error.id|notempty:' field-error'}{/if} form-control input_gray "
 					value="{$smarty.request.id|default:$smarty.request.page|default:$static_id}"  /></p>
 					{html_submit name="save" id="save" class="btn btn-primary" value=$panelstrings.submit accesskey=s}
 					{html_submit name="preview" id="preview" class="btn btn-primary" value=$panelstrings.preview accesskey=p}
diff --git a/admin/panels/widgets/admin.widgets.default.tpl b/admin/panels/widgets/admin.widgets.default.tpl
index 567741d..678a16b 100644
--- a/admin/panels/widgets/admin.widgets.default.tpl
+++ b/admin/panels/widgets/admin.widgets.default.tpl
@@ -75,10 +75,10 @@
 
 								<ul id="widgetsetid-{$widgetset}">
 								{foreach from=$widgetarr item=widget}
-									<li class="widget-instance widget-id-{$widget.id} {$widget.class}">
+									<li class="widget-instance widget-id-{$widget.id} {if isset($widget.class)}{$widget.class}{/if}">
 										<input class="widget-id" type="hidden" name="widgets[{$widgetset}][]" 
-										value="{$widget.id}{if $widget.params}:{$widget.params}{/if}" />
-										{if $widget.params}
+										value="{$widget.id}{if isset($widget.params)}:{$widget.params}{/if}" />
+										{if isset($widget.params)}
 										{* this will be hooked from javascript *}
 										<input class="textinput" style="float:right"  
 											type="text" value="{$widget.params}"/>
@@ -116,8 +116,8 @@
 							{foreach from=$widgetarr item=widget}
 								<li class="widget-instance widget-id-{$widget.id}">
 									<input class="widget-id" type="hidden" name="widgets[{$widgetset}][]" 
-									value="{$widget.id}{if $widget.params}:{$widget.params}{/if}" />
-									{if $widget.params}
+									value="{$widget.id}{if isset($widget.params)}:{$widget.params}{/if}" />
+									{if isset($widget.params)}
 									{* this will be hooked from javascript *}
 									<input class="textinput" style="float:right"  
 										type="text" value="{$widget.params}"/>
diff --git a/fp-plugins/commentcenter/tpls/approvelist.tpl b/fp-plugins/commentcenter/tpls/approvelist.tpl
index 4c0dce0..9e061ee 100644
--- a/fp-plugins/commentcenter/tpls/approvelist.tpl
+++ b/fp-plugins/commentcenter/tpls/approvelist.tpl
@@ -4,7 +4,7 @@
 <p>{$plang.app_desc}</p>
 {assign var="fetch" value="confirm"}
 {include file=plugin:commentcenter/listcomments}
-{if $use_akismet}
+{if isset($use_akismet)}
 <h3>{$plang.app_akismet}</h3>
 <p>{$plang.app_spamdesc}</p>
 {assign var="fetch" value="akismet"}
@@ -12,7 +12,7 @@
 <p><input type="checkbox" class="form-check-input" name="submitham" id="submitham" checked="checked" />
 <label for="submitham">{$plang.app_hamsubmit}</label></p>
 {/if}
-{if $other}
+{if isset($other)}
 <h3>{$plang.app_other}</h3>
 {assign var="fetch" value="denided"}
 {include file=plugin:commentcenter/listcomments}
diff --git a/fp-plugins/commentcenter/tpls/configure.tpl b/fp-plugins/commentcenter/tpls/configure.tpl
index b3c9454..22122d1 100644
--- a/fp-plugins/commentcenter/tpls/configure.tpl
+++ b/fp-plugins/commentcenter/tpls/configure.tpl
@@ -10,7 +10,7 @@
 	<dt><label for="log_all">{$plang.log_all}</label></dt>
 	<dd>
 		<div class="form-check">
-			<input class="form-check-input" type="checkbox" name="log_all" id="log_all"{if $pl_conf.log_all} checked="checked"{/if}>
+			<input class="form-check-input" type="checkbox" name="log_all" id="log_all"{if isset($pl_conf.log_all)} checked="checked"{/if}>
 			<label class="form-check-label" for="log_all">
 				{$plang.log_all_long}
 			</label>
@@ -20,7 +20,7 @@
 	<dt><label for="email_alert">{$plang.email_alert}</label></dt>
 	<dd>
 		<div class="form-check">
-			<input type="checkbox" class="form-check-input" name="email_alert" id="log_all"{if $pl_conf.email_alert} checked="checked"{/if} >
+			<input type="checkbox" class="form-check-input" name="email_alert" id="log_all"{if isset($pl_conf.email_alert)} checked="checked"{/if} >
 			<label class="form-check-label" for="log_all">
 				{$plang.email_alert_long}
 			</label>
@@ -31,19 +31,19 @@
 <h2>{$plang.akismet}</h2>
 <dl class="option-set">
 	<div class="form-check">
-		<input type="checkbox" class="form-check-input" name="akismet_check" id="akismet_check"{if $pl_conf.akismet_check} checked="checked"{/if} >
+		<input type="checkbox" class="form-check-input" name="akismet_check" id="akismet_check"{if isset($pl_conf.akismet_check)} checked="checked"{/if} >
 		<label class="form-check-label" for="log_all">
 			{$plang.akismet_use}
 		</label>
 	</div>
 	<dt class="akismet_opts"><label for="akismet_key">{$plang.akismet_key}</label></dt>
 	<dd class="akismet_opts">
-		<input type="text" class="form-control" name="akismet_key" id="akismet_key" value="{$pl_conf.akismet_key}" /><br />
+		<input type="text" class="form-control" name="akismet_key" id="akismet_key" value="{if isset($pl_conf.akismet_key)}{$pl_conf.akismet_key}{/if}" /><br />
 		{$plang.akismet_key_long}
 	</dd>
 	<dt class="akismet_opts"><label for="akismet_url">{$plang.akismet_url}</label></dt>
 	<dd class="akismet_opts">
-		<input type="text" class="form-control" name="akismet_url" id="akismet_url" value="{$pl_conf.akismet_url}" /><br />
+		<input type="text" class="form-control" name="akismet_url" id="akismet_url" value="{if isset($pl_conf.akismet_url)}{$pl_conf.akismet_url}{/if}" /><br />
 		{$plang.akismet_url_long|sprintf:$smarty.const.BLOG_BASEURL}
 	</dd>
 </dl>
diff --git a/fp-plugins/commentcenter/tpls/deletecomm.tpl b/fp-plugins/commentcenter/tpls/deletecomm.tpl
index a3729a4..d6cdc3b 100644
--- a/fp-plugins/commentcenter/tpls/deletecomm.tpl
+++ b/fp-plugins/commentcenter/tpls/deletecomm.tpl
@@ -1,19 +1,19 @@
 {include file=plugin:commentcenter/header}
 <h2>{$plang.delc_title}</h2>
-<p>{if $single}{$plang.delc_descs}{else}{$plang.delc_descm}{/if}</p>
+<p>{if isset($single)}{$plang.delc_descs}{else}{$plang.delc_descm}{/if}</p>
 {html_form}
 {assign var="delete" value=true}
 {assign var="fetch" value="del"}
 {include file=plugin:commentcenter/listcomments}
 <p>{$plang.sure}</p>
 <div class="buttonbar">
-{if $is_managing}
+{if isset($is_managing)}
 <input type="hidden" name="entry" value="{$entry}" />
 {assign var="button_suff" value="_2"}
 {else}
 {assign var="button_suff" value=""}
 {/if}
-{if $single}
+{if isset($single)}
 	{html_submit name="commdelok$button_suff" class="btn btn-primary" id="commdelok$button_suff" value=$plang.del_subs}
 {else}
 	{html_submit name="commdelok$button_suff" class="btn btn-primary" id="commdelok$button_suff" value=$plang.del_subm}
diff --git a/fp-plugins/commentcenter/tpls/deletepol.tpl b/fp-plugins/commentcenter/tpls/deletepol.tpl
index 829538e..62578ce 100644
--- a/fp-plugins/commentcenter/tpls/deletepol.tpl
+++ b/fp-plugins/commentcenter/tpls/deletepol.tpl
@@ -1,12 +1,12 @@
 {include file=plugin:commentcenter/header}
 <h2>{$plang.del_policies}</h2>
-<p>{if $single}{$plang.del_descs}{else}{$plang.del_descm}{/if}</p>
+<p>{if isset($single)}{$plang.del_descs}{else}{$plang.del_descm}{/if}</p>
 {html_form}
 {assign var="delete" value=true}
 {include file=plugin:commentcenter/listpolicies}
 <p>{$plang.sure}</p>
 <div class="buttonbar">
-{if $single}
+{if isset($single)}
 	{html_submit class="btn btn-primary" name="delok" id="delok" value=$plang.del_subs}
 {else}
 	{html_submit class="btn btn-primary" name="delok" id="delok" value=$plang.del_subm}
diff --git a/fp-plugins/commentcenter/tpls/editpol.tpl b/fp-plugins/commentcenter/tpls/editpol.tpl
index 6bf462d..65d347d 100644
--- a/fp-plugins/commentcenter/tpls/editpol.tpl
+++ b/fp-plugins/commentcenter/tpls/editpol.tpl
@@ -1,22 +1,22 @@
 {include file=plugin:commentcenter/header}
 {html_form}
-<h2>{if $polnew}{$plang.newpol}{else}{$plang.editpol}{/if}</h2>
+<h2>{if isset($polnew)}{$plang.newpol}{else}{$plang.editpol}{/if}</h2>
 <dl class="option-set">
 	<dt>{$plang.apply_to}</dt>
 	<dd>
-		<input type="radio" class="form-check-input" name="apply_to" id="all_entries" value="all_entries"{if $policy.is_all} checked="checked"{/if} />
+		<input type="radio" class="form-check-input" name="apply_to" id="all_entries" value="all_entries"{if isset($policy.is_all)} checked="checked"{/if} />
 		<label for="all_entries">{$plang.all_entries}</label><br />
-		<input type="radio" class="form-check-input" name="apply_to" id="some_entries" value="some_entries"{if !empty($policy.entry)} checked="checked"{/if} />
+		<input type="radio" class="form-check-input" name="apply_to" id="some_entries" value="some_entries"{if isset($policy.entry) && !empty($policy.entry)} checked="checked"{/if} />
 		<label for="some_entries">{$plang.some_entries}</label><br />
-		<input type="radio" class="form-check-input" name="apply_to" id="properties" value="properties"{if !$polnew && !$policy.is_all & empty($policy.entry)} checked="checked"{/if} />
+		<input type="radio" class="form-check-input" name="apply_to" id="properties" value="properties"{if isset($polnew) && !$polnew && isset($policy.is_all) && !$policy.is_all && isset($policy.entry) && empty($policy.entry)} checked="checked"{/if} />
 		<label for="properties">{$plang.properties}</label><br />
 	</dd>
 	<dt><label for="behavoir">{$plang.behavoir}</label></dt>
 	<dd>
 		<select name="behavoir" class="form-select" id="behavoir">
-			<option value="1"{if $policy.do==1} selected="selected"{/if}>{$plang.allow}</option>
-			<option value="0"{if $policy.do==0 && !$polnew} selected="selected"{/if}>{$plang.approvation}</option>
-			<option value="-1"{if $policy.do==-1} selected="selected"{/if}>{$plang.block}</option>
+			<option value="1"{if isset($policy.do) && $policy.do==1} selected="selected"{/if}>{$plang.allow}</option>
+			<option value="0"{if isset($policy.do) && $policy.do==0 && isset($polnew) && !$polnew} selected="selected"{/if}>{$plang.approvation}</option>
+			<option value="-1"{if isset($policy.do) && $policy.do==-1} selected="selected"{/if}>{$plang.block}</option>
 		</select>
 	</dd>
 </dl>
@@ -27,16 +27,16 @@
 <p>{$plang.se_desc|sprintf:"<i>`$plang.some_entries`</i>"}</p>
 <p>{$plang.se_fill}</p>
 
-{if !empty($policy.entry) && !is_array($policy.entry)}
+{if isset($policy.entry) && !empty($policy.entry) && !is_array($policy.entry)}
 {assign var="parity" value=1}
 <input type="text" class="form-control" name="entries[]" value="{$policy.entry|wp_specialchars}" />
-{elseif !empty($policy.entry)}
+{elseif isset($policy.entry) && !empty($policy.entry)}
 {foreach name=entries_foreach from=$policy.entry item=entry}
 <input type="text" class="form-control" name="entries[]" value="{$entry|wp_specialchars}" /> {if ($smarty.foreach.entries_foreach.iteration % 2)==0}<br />{/if}
 {if ($smarty.foreach.entries_foreach.iteration % 2)==1 && $smarty.foreach.entries_foreach.last}{assign var="parity" value=1}{/if}
 {/foreach}
 {/if}
-{if $parity==1} <input type="text" name="entries[]" value="" /><br />{/if}
+{if isset($parity) && $parity==1} <input type="text" name="entries[]" value="" /><br />{/if}
 
 <input type="text" class="form-control" name="entries[]" value="" />
 <input type="text" class="form-control" name="entries[]" value="" /><br />
@@ -58,7 +58,7 @@
 <fieldset>
 <legend>{$plang.po_time}</legend>
 <p><label for="older">{$plang.po_older}</label>
-<input type="text" class="form-control" name="older" id="older" value="{if !empty($policy.older)}{$policy.older/86400}{/if}" class="smalltextinput" style="display: inline-block;"/>
+<input type="text" class="form-control" name="older" id="older" value="{if isset($policy.older) && !empty($policy.older)}{$policy.older/86400}{/if}" class="smalltextinput" style="display: inline-block;"/>
 {$plang.days}</p>
 <!-- TODO: add the option for timestamp -->
 </fiedlset>
diff --git a/fp-plugins/commentcenter/tpls/listcomments.tpl b/fp-plugins/commentcenter/tpls/listcomments.tpl
index fd76bbb..f4a6ce5 100644
--- a/fp-plugins/commentcenter/tpls/listcomments.tpl
+++ b/fp-plugins/commentcenter/tpls/listcomments.tpl
@@ -16,7 +16,7 @@
 {foreach from=$entry.$fetch item=comm key=comm_id}
 {assign var="i" value=$i+1}
 <tr>
-{if !$delete}<td class="td_select_{$fetch}"><input type="checkbox" class="form-check-input" name="select[e{$entryid}_c{$comm_id}]" /></td>{/if}
+{if isset($delete) && !$delete}<td class="td_select_{$fetch}"><input type="checkbox" class="form-check-input" name="select[e{$entryid}_c{$comm_id}]" /></td>{/if}
 <td>{$comm.date|date_format:"%D, %T"}</td>
 <td class="main_cell">
 {$comm.content|strip_tags}
@@ -38,7 +38,7 @@
 <a href="{$action_url|cmd_link:pubnoham:"e`$entryid`_c`$comm.id`"}" title="{$plang.app_pubnotham}"><img src="{$plugin_url}imgs/publish.png" alt="{$plang.app_pubnotham}" /></a>
 {/if}
 {/if}
-{if $is_managing}
+{if isset($is_managing)}
 {assign var="rm_url" value=$action_url|cmd_link:deletecomm2:"e`$entryid`_c`$comm_id`"}
 {else}
 {assign var="rm_url" value=$action_url|cmd_link:deletecomm:"e`$entryid`_c`$comm_id`"}
diff --git a/fp-plugins/commentcenter/tpls/listpolicies.tpl b/fp-plugins/commentcenter/tpls/listpolicies.tpl
index 3be2ea1..5938767 100644
--- a/fp-plugins/commentcenter/tpls/listpolicies.tpl
+++ b/fp-plugins/commentcenter/tpls/listpolicies.tpl
@@ -10,13 +10,13 @@
 	<tbody id="commencenter-table-body">
 {foreach name=policies from=$policies key=id item=policy}
 <tr class="tr_policy{$id}">
-{if !$delete}	<td class="td_select"><input type="checkbox" class="form-check-input" name="select[{$id}]" /></td>{/if}
+{if isset($delete) && !$delete}	<td class="td_select"><input type="checkbox" class="form-check-input" name="select[{$id}]" /></td>{/if}
 	<td class="main-cell">
 {if isset($delete)}<input type="hidden" name="del_policy[]" value="{$id}" />
 {/if}
-{if $policy.is_all}
+{if isset($policy.is_all) && $policy.is_all}
 		{$plang.all_entries}
-{elseif is_array($policy.entry) && count($policy.entry)>0}
+{elseif isset($policy.entry) && is_array($policy.entry) && count($policy.entry)>0}
 {$plang.fol_entries}
 <ul>
 {foreach from=$policy.entry item=entry}
diff --git a/fp-plugins/commentcenter/tpls/manage.tpl b/fp-plugins/commentcenter/tpls/manage.tpl
index 5a2db2e..3962437 100644
--- a/fp-plugins/commentcenter/tpls/manage.tpl
+++ b/fp-plugins/commentcenter/tpls/manage.tpl
@@ -4,7 +4,7 @@
 <p>{$plang.man_searchd}</p>
 
 <div class="form-row">
-	<input type="text" class="form-control" name="entry" value="{$entry_id}" style="display: inline-block;"/>
+	<input type="text" class="form-control" name="entry" value="{if isset($entry_id)}{$entry_id}{/if}" style="display: inline-block;"/>
 	{html_submit name="entry_search" class="btn btn-primary mt-1" id="entry_search" value=$plang.man_search}
 </div>