Fatal error: Uncaught Error: Class 'AmpProject\Validator\Spec\Error' not found in /home/m5dergi/public_html/wp-content/plugins/amp/vendor/ampproject/amp-toolbox/src/Validator/Spec/Error/InvalidPropertyValueInAttrValue.php:21 Stack trace: #0 {main} thrown in /home/m5dergi/public_html/wp-content/plugins/amp/vendor/ampproject/amp-toolbox/src/Validator/Spec/Error/InvalidPropertyValueInAttrValue.php on line 21