[The following has evaluated to null or missing: ==> Session [in template "site-templates/1000/header.ftl" at line 6, column 52] ---- 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)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: #if (action.isGlyph() || action.isArc... [in template "site-templates/1000/header.ftl" at line 6, column 3] - Reached through: #include "/site-templates/" + platfor... [in template "WEB-INF/content/private-channel-blocked.ftl" at line 1, column 1] ----]