Zurret
commented
13 hours ago Please use an older PHP version (e.g. PHP 7.3) since your current version isn't compatible. You would need to make several adjustments to get it working.
I assume you're using PHP 8.x? Next time, please provide more details and not just the error message.
Lyonbln
Fatal error: During inheritance of ArrayAccess: Uncaught ErrorException: Return type of Language::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/vhosts/jango-online.de/uni1.jango-online.de/includes/classes/Language.class.php:165 Stack trace: #0 /var/www/vhosts/jango-online.de/uni1.jango-online.de/includes/classes/Language.class.php(18): errorHandler() #1 /var/www/vhosts/jango-online.de/uni1.jango-online.de/includes/common.php(61): require('...') #2 /var/www/vhosts/jango-online.de/uni1.jango-online.de/install/index.php(23): require('...') #3 {main} in /var/www/vhosts/jango-online.de/uni1.jango-online.de/includes/classes/Language.class.php on line 18