Fatal error: Uncaught Error: Class "Respect\Validation\Rules\AbstractRule" not found in /home/maborneapp/public_html/test/vendor/respect/validation/library/Rules/Isbn.php:27
Stack trace:
#0 {main}
thrown in /home/maborneapp/public_html/test/vendor/respect/validation/library/Rules/Isbn.php on line 27