Aggregator - Full Service Offering

Si è verificato un errore nell'elaborarazione del modello. 
The following has evaluated to null or missing:
==> Anchor_Link  [in template "10155#10193#2626585" at line 18, column 12]

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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: ${Anchor_Link.getData()}  [in template "10155#10193#2626585" at line 18, column 10]
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1<#assign journalArticleService = serviceLocator.findService("com.liferay.journal.service.JournalArticleLocalService") /> 
2<#assign assetService = serviceLocator.findService("com.liferay.asset.kernel.service.AssetEntryService") /> 
3<#assign assetLocalService = serviceLocator.findService("com.liferay.asset.kernel.service.AssetEntryLocalService") /> 
4<#assign assetLinkService = serviceLocator.findService("com.liferay.asset.kernel.service.AssetLinkLocalService") /> 
5<#assign article = journalArticleService.getLatestArticle(groupId, .vars['reserved-article-id'].data) /> 
6<#assign asset = assetLocalService.getEntry("com.liferay.journal.model.JournalArticle", article.getResourcePrimKey()) /> 
7<#assign relatedItems = assetLinkService.getDirectLinks(asset.getPrimaryKey()) /> 
8<#assign uuid = .vars['reserved-article-id'].data /> 
9<#assign relatedAssets = [] /> 
10 
11<#list relatedItems as item > 
12	<#if assetService.getEntry(item.getEntryId2()).getClassPK() != 0> 
13			<#assign relatedAssetEntry=assetService.getEntry(item.getEntryId2())> 
14        	    	<#assign relatedAssets = relatedAssets + [relatedAssetEntry]> 
15	</#if> 
16</#list> 
17 
18<a name="${Anchor_Link.getData()}" style="position:absolute; margin-top:-100px">&nbsp;</a> 
19 
20<div id="${uuid}_multi_row_horizontal_tile_aggregator_template" class="multi_row_horizontal_tile_aggregator_template offering-tile-placeholder-wrapper"> 
21     
22	<#if validator.isNotNull(Main_Title.getData())> 
23		 <div class="display-title" >${Main_Title.getData()}</div> 
24	</#if> 
25     
26	<#if relatedAssets?size gt 0> 
27		 
28		<div class="header-tile-placeholder-wrapper"></div> 
29			<div class="tile-placeholder-body"> 
30				<#list relatedAssets as relatedAsset> 
31					<#if relatedAsset.getClassName() == "com.liferay.journal.model.JournalArticle"> 
32						<#assign relatedArticle = journalArticleService.getLatestArticle(relatedAsset.getClassPK()) />       
33						<#assign uuid = relatedArticle.getUuid() /> 
34						 
35						<#if relatedArticle?hasContent && relatedArticle.isTemplateDriven() > 
36							<div class="product-information-flip-wrapper" > 
37								${journalArticleService.getArticleContent( relatedArticle,relatedArticle.getTemplateId(),null,locale.toString(),portletRequestModelFactory.getPortletRequestModel(),themeDisplay )} 
38							</div> 
39						</#if> 
40						 
41						 
42					</#if> 
43				</#list> 
44			</div> 
45	<#else> 
46		 <div class="invalid-number-of-related-assets">Please select at least one tile</div> 
47	</#if> 
48    
49</div>