An error occurred while processing the template. 
The following has evaluated to null or missing:
==> tipoNavegacao  [in template "10154#10192#1342643" at line 1, column 27]

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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 typeNavigation = tipoNavegaca...  [in template "10154#10192#1342643" at line 1, column 1]
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1<#assign typeNavigation = tipoNavegacao.getData() /> 
2<#assign banners = configBannerFieldSet.getSiblings() /> 
3 
4<#if typeNavigation??> 
5	${typeNavigation} 
6</#if> 
7 
8<#list banners as banner> 
9   <#assign text = banner.bannerTextoAlternativo.getData() /> 
10	 <#assign link = banner.bannerLink.getData() /> 
11	 <#assign image = banner.bannerImagem.getData() /> 
12	  
13	 <p>${text}</p> 
14	 <p>${link}</p> 
15	 <img src="${image}" />  
16</#list>