403 Zugriff verweigert

Fehlermeldung

• Deprecated function: TYPO3\PharStreamWrapper\Manager::initialize(): Implicitly marking parameter $resolver as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /mnt/web423/e1/80/51592580/htdocs/kehlenbach_relaunch_2017/includes/file.phar.inc).
• Deprecated function: TYPO3\PharStreamWrapper\Manager::initialize(): Implicitly marking parameter $collection as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /mnt/web423/e1/80/51592580/htdocs/kehlenbach_relaunch_2017/includes/file.phar.inc).
• Deprecated function: TYPO3\PharStreamWrapper\Manager::__construct(): Implicitly marking parameter $resolver as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /mnt/web423/e1/80/51592580/htdocs/kehlenbach_relaunch_2017/includes/file.phar.inc).
• Deprecated function: TYPO3\PharStreamWrapper\Manager::__construct(): Implicitly marking parameter $collection as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /mnt/web423/e1/80/51592580/htdocs/kehlenbach_relaunch_2017/includes/file.phar.inc).