Fatal error: Uncaught Error: Class "PHPePub\Core\Logger" not found in /home/adufesec/public_html/wallabag/vendor/wallabag/phpepub/tests/EPub.Example3.php:20 Stack trace: #0 {main} thrown in /home/adufesec/public_html/wallabag/vendor/wallabag/phpepub/tests/EPub.Example3.php on line 20