Warning: Uncaught TYPO3\CMS\Core\Error\Exception: PHP Warning: require(/var/www/clients/client1/web93/web/typo3/typo3conf/ext/dachverband/ext_localconf.php): failed to open stream: No such file or directory in /var/www/dist/typo3/typo3_src-8.7.8/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php line 1617 in /var/www/dist/typo3/typo3_src-8.7.8/typo3/sysext/core/Classes/Error/ErrorHandler.php:106 Stack trace: #0 /var/www/dist/typo3/typo3_src-8.7.8/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php(1617): TYPO3\CMS\Core\Error\ErrorHandler->handleError(2, 'require(/var/ww...', '/var/www/dist/t...', 1617, Array) #1 /var/www/dist/typo3/typo3_src-8.7.8/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php(1617): require() #2 /var/www/dist/typo3/typo3_src-8.7.8/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php(1594): TYPO3\CMS\Core\Utility\ExtensionManagementUtility::loadSingleExtLocalconfFiles() #3 /var/www/dist/typo3/typo3_src-8.7.8/typo3/sysext/core/Classes/Core/Bootst in /var/www/dist/typo3/typo3_src-8.7.8/typo3/sysext/core/Classes/Error/ErrorHandler.php on line 106

Fatal error: TYPO3\CMS\Core\Utility\ExtensionManagementUtility::loadSingleExtLocalconfFiles(): Failed opening required '/var/www/clients/client1/web93/web/typo3/typo3conf/ext/dachverband/ext_localconf.php' (include_path='.:/opt/php-7.1.0/lib/php') in /var/www/dist/typo3/typo3_src-8.7.8/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php on line 1617