We are currently running Zencart 1.5.5.a.

We are running on Centos 6.8, MySQL Version 5.5.57 and PHP 7.0.23.

We can login into Admin OK and can make changes however once we hit the "update" button we get thrown out of Admin and end up back at the login page.

On checking the database has updated and all aspects of the edits, deletes etc. have been actioned however we kept ending up back at the login page.

We have checked all recommended settings and using the settings recommended by Zencart.

We have troubled shooted the site and checked sessions etc. All appear to be working 100%

Any recommendations or assistance would be appreciated.

Thank you.