Fatal error: Uncaught TYPO3\CMS\Core\Cache\Exception\NoSuchCacheException: A cache with identifier "assets" does not exist. in /var/www/external/cse/webseite/typo3/sysext/core/Classes/Cache/CacheManager.php:137 Stack trace: #0 /var/www/external/cse/webseite/typo3/sysext/core/Classes/Imaging/IconRegistry.php(540): TYPO3\CMS\Core\Cache\CacheManager->getCache('assets') #1 /var/www/external/cse/webseite/typo3/sysext/core/Classes/Imaging/IconRegistry.php(514): TYPO3\CMS\Core\Imaging\IconRegistry->getCachedBackendIcons() #2 /var/www/external/cse/webseite/typo3/sysext/core/Classes/Imaging/IconRegistry.php(494): TYPO3\CMS\Core\Imaging\IconRegistry->initialize() #3 /var/www/external/cse/webseite/typo3/sysext/core/Classes/Utility/GeneralUtility.php(3675): TYPO3\CMS\Core\Imaging\IconRegistry->__construct() #4 /var/www/external/cse/webseite/typo3/sysext/core/Classes/Imaging/IconFactory.php(65): TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\...') #5 /var/www/external/cse/webseite/typo3/sysext/core/Classes/Util in /var/www/external/cse/webseite/typo3/sysext/core/Classes/Cache/CacheManager.php on line 137