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Wie in der Oper - nur ohne das Tuscheln der Nachbarn.

The following has evaluated to null or missing:
==> hamaInstance [in template "his9/sys/functions/head.ftl" at line 19, column 15]

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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: #if (hamaInstance == "international" ... [in template "his9/sys/functions/head.ftl" in function "headMetaRobots" at line 19, column 9]
- Reached through: ${headMetaRobots()} auto-escaped [in template "sys/macros/html.ftl" in macro "head" at line 47, column 46]
- Reached through: @head [in template "master.ftl" at line 4, column 17]
~ Reached through: #nested [in template "sys/macros/html.ftl" in macro "html" at line 16, column 17]
~ Reached through: @html [in template "master.ftl" at line 3, column 9]
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The following has evaluated to null or missing:
==> headMetaRobots() [in template "sys/macros/html.ftl" at line 47, column 48]

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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: ${headMetaRobots()} auto-escaped [in template "sys/macros/html.ftl" in macro "head" at line 47, column 46]
- Reached through: @head [in template "master.ftl" at line 4, column 17]
~ Reached through: #nested [in template "sys/macros/html.ftl" in macro "html" at line 16, column 17]
~ Reached through: @html [in template "master.ftl" at line 3, column 9]
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