Fatal error: During inheritance of ArrayAccess: Uncaught TYPO3\CMS\Core\Error\Exception: PHP Runtime Deprecation Notice: Return type of TYPO3\CMS\Core\Log\LogRecord::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Log/LogRecord.php line 310 in /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Error/ErrorHandler.php:128
Stack trace:
#0 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Log/LogRecord.php(20): TYPO3\CMS\Core\Error\ErrorHandler->handleError()
#1 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/vendor/composer/ClassLoader.php(480): include('...')
#2 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/vendor/composer/ClassLoader.php(346): Composer\Autoload\includeFile()
#3 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/vendor/typo3/class-alias-loader/src/ClassAliasLoader.php(135): Composer\Autoload\ClassLoader->loadClass()
#4 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/vendor/typo3/class-alias-loader/src/ClassAliasLoader.php(123): TYPO3\ClassAliasLoader\ClassAliasLoader->loadClass()
#5 [internal function]: TYPO3\ClassAliasLoader\ClassAliasLoader->loadClassWithAlias()
#6 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Utility/GeneralUtility.php(3712): class_exists()
#7 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Utility/GeneralUtility.php(3677): TYPO3\CMS\Core\Utility\GeneralUtility::getClassName()
#8 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Log/Logger.php(211): TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance()
#9 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Log/Logger.php(285): TYPO3\CMS\Core\Log\Logger->log()
#10 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Error/AbstractExceptionHandler.php(85): TYPO3\CMS\Core\Log\Logger->critical()
#11 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Error/DebugExceptionHandler.php(41): TYPO3\CMS\Core\Error\AbstractExceptionHandler->writeLogEntries()
#12 /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Error/AbstractExceptionHandler.php(56): TYPO3\CMS\Core\Error\DebugExceptionHandler->echoExceptionWeb()
#13 [internal function]: TYPO3\CMS\Core\Error\AbstractExceptionHandler->handleException()
#14 {main} in /srv/www/vhosts/bwc-typo3.de/httpdocs/typo3_src-9/typo3/sysext/core/Classes/Log/LogRecord.php on line 20