Can't access Managment console via browser

[open7]

I am on my local network trying to access the server managment console via Firefox or IE at http://192.168.1.xx:5481/MainForm.wgx and I get the error after I log in with my username and password:

"An exception occurred MainForm Error: Index was outside the bounds of the array."

When I click OK the form is blank.

This same thing happens if I try to use Firefox or IE from the server itself.

This is obviously not related to the Browser (I tried both IE and Firefox) and it happens from multiple computers.

Any ideas?

 

[leejor]

Have you tried after restarting 3CX or re-booting the PC?

 

[open7]

Indeed, this fixes it. But this has happened several times and I have had to reboot the server for it to work again. Any idea what could be causing it?