Fatal error: Uncaught Error: Class 'ApaiIO\Operations\AbstractOperation' not found in /home/app3/public_html/service/vendor/exeu/apai-io/src/ApaiIO/Operations/SimilarityLookup.php:29 Stack trace: #0 {main} thrown in /home/app3/public_html/service/vendor/exeu/apai-io/src/ApaiIO/Operations/SimilarityLookup.php on line 29