Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, bool given in /homepages/36/d429326283/htdocs/3d-frinortmanni-de/plugins/Calendar/pattern/dates.php:107 Stack trace: #0 /homepages/36/d429326283/htdocs/3d-frinortmanni-de/plugins/Calendar/pattern/dates.php(88): dates->help_get_Prev_Next_Nav() #1 /homepages/36/d429326283/htdocs/3d-frinortmanni-de/plugins/Calendar/pattern/dates.php(294): dates->help_title_navi() #2 /homepages/36/d429326283/htdocs/3d-frinortmanni-de/plugins/Calendar/index.php(59): dates->template_year() #3 /homepages/36/d429326283/htdocs/3d-frinortmanni-de/cms/Plugin.php(86): Calendar->getContent() #4 /homepages/36/d429326283/htdocs/3d-frinortmanni-de/cms/Syntax.php(900): Plugin->getPluginContent() #5 /homepages/36/d429326283/htdocs/3d-frinortmanni-de/cms/Syntax.php(248): Syntax->plugin_replace() #6 /homepages/36/d429326283/htdocs/3d-frinortmanni-de/index.php(352): Syntax->convertContent() #7 /homepages/36/d429326283/htdocs/3d-frinortmanni-de/index.php(215): readTemplate() #8 {main} thrown in /homepages/36/d429326283/htdocs/3d-frinortmanni-de/plugins/Calendar/pattern/dates.php on line 107