CarouselFocus

An error occurred while processing the template. 
The following has evaluated to null or missing:
==> cur_FieldsGroup16876684.Immagine.getAttribute("fileEntryId")  [in template "20096#20121#42390" at line 19, column 103]

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Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
	- Failed at: ${cur_FieldsGroup16876684.Immagine.ge...  [in template "20096#20121#42390" at line 19, column 101]
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1<#-- 
2Add elements from the sidebar to define your template. Type "${" to use the 
3autocomplete feature. 
4--> 
5<section class="focus"> 
6  <div class="row"> 
7    <div class="col-md-12"> 
8		  <div class="tabsezhp"> 
9        <div class="img_tabsezfocushp"><img alt="segnalibro notizie" src="/o/SLI/images/pitto_sez.svg"></div> 
10        <div class="tit_tabsezhp">Focus, Strumenti e Prodotti</div> 
11      </div> 
12			<hr> 
13    	<div class="owl-carousel owl-theme" id="owl-focus"> 
14       <#if FieldsGroup16876684.getSiblings()?has_content> 
15	       <#list FieldsGroup16876684.getSiblings() as cur_FieldsGroup16876684>			 
16			<#assign target = "_blank"> 
17		       <div class="item_focus"> 
18			       <a href="${cur_FieldsGroup16876684.url.getData()}" target="${target}" title="visita il sito ${cur_FieldsGroup16876684.url.getData()}"> 
19               <img alt="${cur_FieldsGroup16876684.Immagine.getAttribute("alt")}" data-fileentryid="${cur_FieldsGroup16876684.Immagine.getAttribute("fileEntryId")}" src="${cur_FieldsGroup16876684.Immagine.getData()}" /> 
20		           <div class="caption">${cur_FieldsGroup16876684.caption.getData()}</div>  
21			       </a>  
22		       </div> 
23	       </#list> 
24       </#if> 
25      </div>  
26			<hr> 
27    </div>  
28  </div>  
29</section> 

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