freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:
==> articles [in template "68865" at line 23, column 24]
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Tip: If the failing expression is known to be legally refer to something that's null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing. (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: #list articles as article [in template "68865" at line 23, column 17]
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