Warning: count(): Parameter must be an array or an object that implements Countable in _filter_url() (Zeile 1535 von /var/www/vhosts/lernwerkstatt.info/httpdocs/modules/filter/filter.module).
Notice: Trying to access array offset on value of type bool in _filter_url() (Zeile 1541 von /var/www/vhosts/lernwerkstatt.info/httpdocs/modules/filter/filter.module).