Dear Everyone,I'm experiencing a problem while trying to login into agent panel at ./ticketing/scp/login.php. The error message is Valid CSRF Token Required.I've installed osTicket version 1.10 in local PC and staging server and it is work properly. But it doesn't work on my production server.My local server setting is using XAMPP with Apache, PHP 7.0.9 and MySQL Maria DB 10.1.16.My staging server and my production server has similar system information as follow:64bit Amazon Linux 2017.03 v2.4.0ApachePHP 7.0.16I've read some other similar issues but it can't solve my issue. For example, the suggestion to clear cache and it doesn't work and osTicket version 1.10 should work on previous PHP 7.1.Please assist me where I've missed.Thank in advance.