Warning: include(/html/typo3/typo3_src-8.7.13/vendor/composer/../../typo3/sysext/core/Classes/Messaging/FlashMessage.php): failed to open stream: Permission denied in /html/typo3/typo3_src-8.7.13/vendor/composer/ClassLoader.php on line 444

Warning: include(): Failed opening '/html/typo3/typo3_src-8.7.13/vendor/composer/../../typo3/sysext/core/Classes/Messaging/FlashMessage.php' for inclusion (include_path='.:') in /html/typo3/typo3_src-8.7.13/vendor/composer/ClassLoader.php on line 444

Warning: include(/html/typo3/typo3_src-8.7.13/vendor/composer/../../typo3/sysext/core/Classes/Messaging/FlashMessage.php): failed to open stream: Permission denied in /html/typo3/typo3_src-8.7.13/vendor/composer/ClassLoader.php on line 444

Warning: include(): Failed opening '/html/typo3/typo3_src-8.7.13/vendor/composer/../../typo3/sysext/core/Classes/Messaging/FlashMessage.php' for inclusion (include_path='.:') in /html/typo3/typo3_src-8.7.13/vendor/composer/ClassLoader.php on line 444

Warning: Invalid argument supplied for foreach() in /html/typo3/typo3_src-8.7.13/vendor/typo3/class-alias-loader/src/ClassAliasLoader.php on line 170

Fatal error: Uncaught Error: Class 'TYPO3\CMS\Core\Messaging\FlashMessage' not found in /html/typo3/typo3_src-8.7.13/typo3/sysext/core/Classes/Error/ErrorHandler.php:118 Stack trace: #0 /html/typo3/typo3_src-8.7.13/vendor/composer/ClassLoader.php(444): TYPO3\CMS\Core\Error\ErrorHandler->handleError(2, 'include(/html/t...', '/html/typo3/typ...', 444, Array) #1 /html/typo3/typo3_src-8.7.13/vendor/composer/ClassLoader.php(444): include() #2 /html/typo3/typo3_src-8.7.13/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile('/html/typo3/typ...') #3 /html/typo3/typo3_src-8.7.13/vendor/typo3/class-alias-loader/src/ClassAliasLoader.php(130): Composer\Autoload\ClassLoader->loadClass('TYPO3\\CMS\\Core\\...') #4 /html/typo3/typo3_src-8.7.13/vendor/typo3/class-alias-loader/src/ClassAliasLoader.php(120): TYPO3\ClassAliasLoader\ClassAliasLoader->loadClass('TYPO3\\CMS\\Core\\...') #5 [internal function]: TYPO3\ClassAliasLoader\ClassAliasLoader->loadClassWithAlias('TYPO3\\CMS\\Core\\...') #6 /html/typo3/typo3_src-8.7.13/typ in /html/typo3/typo3_src-8.7.13/typo3/sysext/core/Classes/Error/ErrorHandler.php on line 118