Fatal error: Uncaught Error: Undefined constant "Patchwork\Utf8\MB_OVERLOAD_STRING" in /var/www/clients/client3/web26/web/vendor/patchwork/utf8/src/Patchwork/Utf8/Bootup.php:45 Stack trace: #0 /var/www/clients/client3/web26/web/vendor/patchwork/utf8/src/Patchwork/Utf8/Bootup.php(26): Patchwork\Utf8\Bootup::initMbstring() #1 /var/www/clients/client3/web26/web/vendor/contao/core-bundle/src/Resources/functions/utf8_bootup.php(11): Patchwork\Utf8\Bootup::initAll() #2 /var/www/clients/client3/web26/web/vendor/composer/autoload_real.php(66): require('/var/www/client...') #3 /var/www/clients/client3/web26/web/vendor/composer/autoload_real.php(56): composerRequired6cbe636f1f2d5e7fcbb477fc9103ecd('51ac2c1f730ac97...', '/var/www/client...') #4 /var/www/clients/client3/web26/web/vendor/autoload.php(7): ComposerAutoloaderInitd6cbe636f1f2d5e7fcbb477fc9103ecd::getLoader() #5 /var/www/clients/client3/web26/web/web/app.php(17): require('/var/www/client...') #6 {main} thrown in /var/www/clients/client3/web26/web/vendor/patchwork/utf8/src/Patchwork/Utf8/Bootup.php on line 45