Fatal error: Uncaught Error: Class "FontLib\Header" not found in /home/bimmertest/BookStack/vendor/phenx/php-font-lib/src/FontLib/TrueType/Header.php:16 Stack trace: #0 {main} thrown in /home/bimmertest/BookStack/vendor/phenx/php-font-lib/src/FontLib/TrueType/Header.php on line 16