I upgraded our WHMCS from version 5.3.14 to version 7.5. After upgrading I have problem with domains/services search from admin area. I'm getting 500 internal server error on AJAX call from whmcs/admin/templates/blend/js/scripts.min.js to whmcs/admin/search.php. I'm using PHP 7.2. Is this problem maybe is related to cUrl version (currently it is 7.59.0)?
If someone had a similar problem, or have some idea how to overcome this problem I'd be happy to hear some potential solution.
Thanks in davnace!