FreePBX does not show any extension

Since today FreePBX does not show me the extensions. It displays an empty page with the button Add Extension.

In the database the table devices contains all the correct data also in the table findmefollow. Asterisk knows all extensions, the phones are working. With asterisk -rx “database show ampuser” all extensions are showed.

Yesterday all has worked. Where are the problem? FreePBX on CentOS 5.7.

I doubt that FreePBX 2.8 was ever tested with CentOS 5.7, so it sounds like you rolled your own. I suggest you try the FreePBX Distro, or PBX In A Flash, and see if you have the same problem.

I have found the problem: the admin user had an extension range. Removing it solves the problem.