Hi there, I just upgrade to 3.1.4, the upgrade process with no error. After that, I login the panel and all seems normal. But if I click on any button, the panel will load that page and keeping loading. If I press reload page, the page can show out as normal. But I still cannot amend or config anything because if I press any of it again, loading again. But my emails, web, dns, ftp all are fine to use. Now just cannot create new things or config anything. I tried: 1. use php -q upgrade.php to force upgrade again with no luck. 2. Use another server's ispconfig to overwrite this server's /var/local/ispconfig folder and copy back the config files, still loading. 3. repair mysql database and nothing to repair. 4. compare apache conf file with no diff. Please help. Thanks.