Java method "org.jstage.shop.core.view.NavigationViewModel.getCategoryById(String)" threw an exception when invoked on org.jstage.shop.core.view.NavigationViewModel object "org.jstage.shop.core.view.NavigationViewModel@1bd60da8"; see cause exception in the Java stack trace.
---- FTL stack trace ("~" means nesting-related): - Failed at: #assign category = (id?has_content &&... [in template "sys/functions/navigationViewModel.ftl" in function "navGetCategoryById" at line 3, column 9] - Reached through: #include "/${webresourceType.template... [in template "sys/macros/tags.ftl" in macro "printWebresourceType" at line 42, column 25] - Reached through: @printWebresourceType webresourceType... [in template "sys/search-documents.ftl" at line 41, column 33] - Reached through: #include "${metaViewModel.ftlInclude}" [in template "master.ftl" at line 11, column 41] (Hidden 10 "~" lines for terseness)