Fatal error: Uncaught Error: Class "League\OAuth1\Client\Signature\Signature" not found in /home/bimmertest/BookStack/vendor/league/oauth1-client/src/Signature/HmacSha1Signature.php:5 Stack trace: #0 {main} thrown in /home/bimmertest/BookStack/vendor/league/oauth1-client/src/Signature/HmacSha1Signature.php on line 5