APPManager Loading Page

Hello,

I have AppManager and it was working fine since version 8.
Lately we install a new server with version 11, latest service pack was 11.9.

When we load the Web site Admin page, and try to change any setting for a monitor, the web page stand on "Loading Page" but never loads, and it last several minutes and nothing happens.

We updated to version 12.10 and nothing

Now in FireFox I see only a message telling us that Script is taking so long, and if we choose Debug, it show /templates/Utils.js line 124 has the problem.

Please help us, we need urgently to modify some monitors, and create a new ones.

A script on this page may be busy, or it may have stopped responding. You can stop the script now, open the script in the debugger, or let the script continue.

Script: http://xx.xx.xx.xx:9090/template/Utils.js:124

Thanks in advance.