11.0.8 Error 500

[icehawk-de]

After update to 11.0.8 I get an error 500

TYPO3 11.5.36 - Composer installation

(1/1) ParseError
syntax error, unexpected '|', expecting ';' or '{'

in /var/www/html/public/typo3conf/ext/form_extended/Classes/Mvc/Property/TypeConverter/UploadedFileReferenceConverter.php line 107