S'ha produït un error mentre es processava la plantilla. 
The following has evaluated to null or missing:
==> DLFileEntryUtil.fetchDLFileEntryByUuidAndGroupId( uuid, group_id)  [in template "18771710#18771743#ARTICLE" at line 33, column 39]

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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: #assign imagenIGImage = DLFileEntryUt...  [in template "18771710#18771743#ARTICLE" at line 33, column 15]
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1<#assign url=""> 
2 
3<#assign DLFileEntryUtil= serviceLocator.findService("com.liferay.document.library.kernel.service.DLFileEntryLocalService")>    
4  
5 
6<h2>${.vars["reserved-article-title"].data}</h2>  
7<#--Slider --> 
8<#if imatge.imatgeUrl.getData()?has_content ||  imatge.imatgeUrl.urlExterna.getData()?has_content>  
9  <#assign i=0>  
10  <div id="carousel-${.vars["reserved-article-id"].data}" class="carousel slide" data-ride="carousel">  
11    <ol class="carousel-indicators">  
12    <#list imatge.getSiblings() as item>  
13      <li data-target="#carousel-${.vars["reserved-article-id"].data}" data-slide-to="${i}"  
14      <#if i==0> class="active" </#if>></li>  
15      <#assign i= i+1>  
16    </#list>  
17    </ol>  
18    <#assign i=0>  
19    <div class="carousel-inner" role="listbox">  
20      <#list imatge.getSiblings() as item>  
21        <div class="carousel-item <#if i==0> active <#assign i=1> </#if>">  
22          <#if item.imatgeUrl.getData()?has_content>  
23            <#assign url= item.imatgeUrl.getData()>  
24            <#if stringUtil.contains(url,"?")> 
25                <#assign url= stringUtil.split( url,"?").get(0)> 
26            </#if> 
27            <#assign parts= stringUtil.split( url,"/")>  
28            <#if parts?size gt 2>  
29              <#assign group_id= getterUtil.getLong( parts[2])>  
30              <#assign folder_id= getterUtil.getLong( parts[3])>  
31              <#assign doc_name= staticUtil['com.liferay.portal.kernel.util.HttpComponentsUtil'].decodeURL( parts[4])>  
32              <#assign uuid= getterUtil.getString( parts[5])> 
33              <#assign imagenIGImage= DLFileEntryUtil.fetchDLFileEntryByUuidAndGroupId( uuid, group_id)> 
34            </#if>  
35          <#else> 
36            <#if item.imatgeUrl.urlExterna.getData()?has_content>  
37              <#assign url= item.imatgeUrl.urlExterna.getData()>  
38            </#if>  
39          </#if>  
40 
41          <#assign titol="">  
42          <#if imagenIGImage.getDescription()?has_content>  
43            <#assign titol= htmlUtil.escape( imagenIGImage.getDescription())>  
44          </#if>  
45 
46          <#--codi del slide --> 
47              <img src="${url}" alt="${htmlUtil.stripHtml(stringUtil.trim(item.imatgeDescripcio.getData()))}" title="${titol}" style="max-height:350px;width:100%" data-toggle="tooltip" data-placement="bottom" data-html="true">  
48              <div class="carousel-caption">  
49                ${i}tem.imatgeDescripcio.getData()  
50              </div>  
51          <#--fi codi --> 
52        </div>  
53      </#list>  
54    </div>  
55    <#--Controls --> 
56    <a class="left carousel-control-prev" href="#carousel-${.vars["reserved-article-id"].data}" data-slide="prev">  
57          <i class="icon-ui-arrow-left"></i>  
58    </a>  
59    <a class="right carousel-control-next" href="#carousel-${.vars["reserved-article-id"].data}" data-slide="next">  
60        <i class="icon-ui-arrow-right"></i>  
61    </a>  
62  </div>  
63  <br/>  
64</#if>  
65<#-- Fi slider --> 
66<div class="text-justify welcome-banner padding1em" style="margin-bottom:20px">  
67${entradeta.getData()}  
68</div>  
69<#if descripcio.getData()?has_content>  
70<div class="text-justify">  
71    ${descripcio.getData()}  
72</div>  
73</#if>  
74 
75<#assign i=0>  
76 
77<#list mesInfo.getSiblings() as item>  
78    <#if item.mesInfoUrl.getData()?has_content>  
79        <#if i==0>  
80            <h3><br/><@liferay.language key="parc.activitat.mesurl"/>:</h3>  
81            <ul>  
82            <#assign i=1>  
83        </#if>  
84        <li>  
85            <a href="${i}tem.mesInfoUrl.getData()" title="${i}tem.mesInfoText.getData()" target="_blank">  
86            ${i}tem.mesInfoText.getData()  
87            </a>  
88        </li>  
89    </#if>  
90</#list>  
91<#if i==1>  
92    </ul>  
93</#if> 

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