Exception on the threads reply page - 'This widget could not be displayed'

I know this has been asked many times earlier, and I even tried the solutions in thread http://lithosphere.lithium.com/t5/developers-discussion/I-keep-getting-a-message-saying-This-widget-could-not-be/m-p/83520/highlight/true#M2949 in which I changed the rest call to restadmin calls, but it still did not work. My problem is similar to what others are getting,

Scenario:

When I reply to a thread with a user having Admin or Moderator role, it is fine, but when a user without any role replies to the thread, it shows 'This widget could not be displayed' on the "Replying to:" area which is below the rich text editor, as shown below:

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My code has many attemp recover blocks, code is as below:

<#include "*/pdc6_functions_shigton.ftl">
<#include "*/pdc6_functions.ftl">
<#assign messageId = env.context.message.id />
<#attempt>
<#assign threadId = page.context.thread.topicMessage.id />
<#recover>
<#assign threadId = -1 />
</#attempt>
<#attempt>
<#assign threadUId = page.context.thread.topicMessage.uniqueId />
<#recover>
<#assign threadUId = -1 />
</#attempt>
<#assign authorContext= env.context.message.author />
<#assign authorRest = rest("/users/id/${authorContext.id}")>
<#assign author = authorRest.user />
<#attempt>
    <#assign postCountRest = rest("/users/id/${author.id}/posts/count")>
<#recover>
   <#-- Cat. not there -->
</#attempt>
<#attempt>
    <#assign rolesRest = rest("/users/id/${author.id}/ranking")>
	
<#recover>
   <#-- Cat. not there -->
</#attempt>

<#attempt>
    
	<#assign onlineStatus = rest("/users/id/${author.id}/sessions/online/latest")>
<#recover>
   <#-- Cat. not there -->
</#attempt>


<#attempt>
    <#assign labelsRest = rest("/messages/id/${threadUId}/labels")>
<#recover>
   <#-- Cat. not there -->
</#attempt>
<#attempt>
    <#assign registrationDateRest = rest("/users/id/${author.id}/registration_time")>
<#recover>
   <#-- Cat. not there -->
</#attempt>
<#attempt>
    <#assign postDateRest = rest("/messages/id/${threadUId}/post_time")>
<#recover>
   <#-- Cat. not there -->
</#attempt>
<#attempt>
    <#assign rankIconRest = rest("/users/id/${author.id}/ranking/display/left_image")>
	
<#recover>
   <#-- Cat. not there -->
</#attempt>

<#attempt>
    
	<#assign rankIconRestRight = rest("/users/id/${author.id}/ranking/display/right_image")>
<#recover>
   <#-- Cat. not there -->
</#attempt>

<#attempt>
    <#assign rankImageRest = rest("/users/id/${author.id}/ranking/display/left_image")>
	
<#recover>
   <#-- Cat. not there -->
</#attempt>

<#attempt>
    
	<#assign rankImageRestRight = rest("/users/id/${author.id}/ranking/display/right_image")>
<#recover>
   <#-- Cat. not there -->
</#attempt>

<#assign postCount = postCountRest.value />

<#assign avatar = rest("/users/id/${author.id}/profiles/avatar/size/profile").image>

<#assign role = rolesRest.ranking.name />
<#if role == "N/A">
	<#assign role = "Member" />
</#if>
<#attempt>
<#assign labels = labelsRest.labels />
<#recover>

</#attempt>
<#assign registrationDateObject = registrationDateRest.value?datetime("yyyy-MM-dd'T'hh:mm:ss") />
<#assign registrationDateString = registrationDateObject?string("dd/MM/yyyy") />
<#attempt>
<#assign postDateObject = postDateRest.value?datetime("yyyy-MM-dd'T'hh:mm:ss") />
<#recover>

</#attempt>
<#assign isRegistered = onlineStatus.user_session.@null  />
<#if (isRegistered?has_content) >
<#assign registeredString = "Offline"/>
	<#assign registeredClass = "Offline" />

<#else>
	<#assign registeredString = "Online" />
	<#assign registeredClass = "Online" />
	
</#if>
<#if rankIconRest.image?has_content >
	
	<#assign rankIcon = rankIconRest.image.url />
	<#assign rankIconRight = rankIconRestRight.image.url />
<#else>	
	<#assign rankIcon = "no" />
</#if>

<#if messageId == threadId>
<div class="pdc6-author-details">
				<div class="top">
					<div class="date">
						<span class="day">${postDateObject?string('dd')}</span>
						<span class="month">${postDateObject?string('MMM')}</span>
						<span class="year">${postDateObject?string('YYYY')}</span>
					</div>
					<div class="avatar">
						<img width="100" height="100" src="${avatar.url}"  />
					</div>
					<div class="details" >
						<span class="name">By: <a href="/t5/user/viewprofilepage/user-id/${author.id}">${author.login}</a></span>
						<span class="role">
						<#if rankIcon?has_content >
							<img width="32" height="32" src="${rankIcon}" />
						</#if>
						${role}
						
							<#if rankIconRight?has_content >
							<img width="32" height="32" src="${rankIconRight}" />
						</#if>
						</span>
						
						
						<span class="post-count">${postCount} posts</span>
					</div>				
				</div>
				<div class="clear-both bottom">
					<div class="ranking">
						<div class="ranking-details">
							
							<div class="status ${registeredClass}">${registeredString}</div>
							<div class="addme"><a href="/t5/user/viewprofilepage/user-id/${author.id}">ADD AS A FRIEND</a></div>
						</div>
						<div class="ranking-icon">
							
						</div>
					</div>
					<ul class="labels">
                                                <li class="top">Labels</li>
						<#list labels.label as label>
                                                    <li><a href="/t5/forums/filteredbylabelpage/board-id/${page.context.thread.board.id}/label-name/${label.text}">${label.text}</a></li>
                                                </#list>
					</ul>
				</div>
				<div class="clear-both"></div>
			</div>

<#else>
<div class="pdc6-message-author-details">
	
	<div class="username">
		<#if rankIcon?has_content >
			<img width="32" height="32" src="${rankIcon}" />
		</#if>
	<a href="/t5/user/viewprofilepage/user-id/${author.id}">${author.login}</a>
	
	<#if rankIconRight?has_content >
			<img width="32" height="32" src="${rankIconRight}" />
	</#if>
	</div>
	
	
	
	<div class="role">${role}</div>
	
	<div class="avatar">
	    <img src="${avatar.url}" width="80" height="80" />
	</div>		
	
	<div class="inception"><strong>Member since</strong> ${registrationDateString}</div>
	
		<div class="status ${registeredClass}">${registeredString}</div>
		<div class="postcount"><strong>${postCount}</strong> posts</div>
	
	<div class="user-info"><a href="/t5/user/viewprofilepage/user-id/${author.id}">User Info</a></div>
	
	
    <div class="triangle">&nbsp;</div>
</div>
<div class="pdc6-message-author-details-hidden" style="display: none;">
	<div class="left-section">
		
		<div class="avatar">
			<img src="${avatar.url}" width="80" height="80"/>
		</div>	
<div class="username">
		<#if rankIcon?has_content >
			<img width="32" height="32" src="${rankIcon}" />
		</#if>
		<a href="/t5/user/viewprofilepage/user-id/${author.id}">${author.login}</a></div>		
		
		
	</div>
	<div class="right-section">
	    
		<div class="addme"><a href="/t5/user/viewprofilepage/user-id/${author.id}">ADD AS A FRIEND</a></div>
		
		
	</div>
</div>			
</#if>

Thanks