Fatal error: Uncaught RuntimeException: Could not write log record to log file in /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Log/Writer/FileWriter.php:170
Stack trace:
#0 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Log/Logger.php(258): TYPO3\CMS\Core\Log\Writer\FileWriter->writeLog(Object(TYPO3\CMS\Core\Log\LogRecord))
#1 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Log/Logger.php(222): TYPO3\CMS\Core\Log\Logger->writeLog(Object(TYPO3\CMS\Core\Log\LogRecord))
#2 /var/www/vhosts/dev.grone.de/htdocs/releases/21/vendor/psr/log/Psr/Log/AbstractLogger.php(85): TYPO3\CMS\Core\Log\Logger->log(4, 'Instantiation o...', Array)
#3 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Log/LogManager.php(153): Psr\Log\AbstractLogger->warning('Instantiation o...')
#4 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Log/LogManager.php(108): TYPO3\CMS\Core\Log\LogManager->setWritersForLogger(Object(TYPO3\CMS\Core\Log\Logger))
#5 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Utility/GeneralUtility.php(3498): TYPO3\CMS\Core\Log\LogManager->getLogger('TYPO3.CMS.Core....')
#6 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Core/Bootstrap.php(422): TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\...', 30466)
#7 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Core/Bootstrap.php(100): TYPO3\CMS\Core\Core\Bootstrap::initializeErrorHandling()
#8 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/index.php(25): TYPO3\CMS\Core\Core\Bootstrap::init(Object(Composer\Autoload\ClassLoader))
#9 /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/index.php(26): {closure}()
#10 {main}
thrown in /var/www/vhosts/dev.grone.de/htdocs/releases/21/public/typo3/sysext/core/Classes/Log/Writer/FileWriter.php on line 170