A fatal error has occurred

During inheritance of ArrayAccess: Uncaught ArgumentCountError: Too few arguments to function Horde_ErrorHandler::errorHandler(), 4 passed in /usr/share/php/Horde/Registry/Hordeconfig.php on line 24 and exactly 5 expected in /usr/share/php/Horde/ErrorHandler.php:153 Stack trace: #0 /usr/share/php/Horde/Registry/Hordeconfig.php(24): Horde_ErrorHandler::errorHandler() #1 /usr/share/php/Horde/Autoloader.php(128): include('...') #2 /usr/share/php/Horde/Autoloader.php(65): Horde_Autoloader->_include() #3 /usr/share/php/Horde/Registry.php(1763): Horde_Autoloader->loadClass() #4 /usr/share/php/Horde/Registry.php(480): Horde_Registry->importConfig() #5 /usr/share/php/Horde/Registry.php(287): Horde_Registry->__construct() #6 /var/www/clients/client0/web20/web/index.php(17): Horde_Registry::appInit() #7 {main}

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