The following has evaluated to null or missing:
==> channels [in template "WEB-INF/t/cms/www/default/includes/header.html" at line 97, column 32]
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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: #list channels?sort_by("sortNum") as c [in template "WEB-INF/t/cms/www/default/includes/header.html" at line 97, column 25]
- Reached through: #include "../includes/header.html" [in template "WEB-INF/t/cms/www/default/common/page_not_found.html" at line 9, column 3]
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