Fatal error: Cannot declare class dokuwiki\Menu\Item\AbstractItem, because the name is already in use in /var/www/vhosts/web47.base.spaceindex.net/siebenhafen/wiki/lib/tpl/bootstrap3/compat/inc/Menu/Item/AbstractItem.php on line 20
dokuwiki\Exception\FatalException: Cannot declare class dokuwiki\Menu\Item\AbstractItem, because the name is already in use

dokuwiki\Exception\FatalException: Cannot declare class dokuwiki\Menu\Item\AbstractItem, because the name is already in use

An unforeseen error has occured. This is most likely a bug somewhere.

More info has been written to the DokuWiki error log.