Error Number: 1064
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'AND category_id=' at line 1
SELECT * FROM cms_splittest_result WHERE abtest_id = AND category_id=
Filename: /var/www/vhosts/vps-239431-3936.hosted.at.hostnet.nl/steun.aidsfonds.nl/modules/categorie/models/Categorie_model.php
Line Number: 1502