[29-Mar-2021 16:36:14 UTC] PHP Fatal error:  Interface 'JMS\Serializer\Handler\SubscribingHandlerInterface' not found in /home/james/public_html/url-to-signNow2.0/vendor/signnow/rest-entity-manager/src/Service/Serializer/Handler/File.php on line 17
[29-Mar-2021 16:37:11 UTC] PHP Fatal error:  Interface 'JMS\Serializer\Handler\SubscribingHandlerInterface' not found in /home/james/public_html/url-to-signNow2.0/vendor/signnow/rest-entity-manager/src/Service/Serializer/Handler/Link.php on line 17
