Unable to Activate system after rebuild

Hi folks,

I have just re-installed freepbx after a failed hard drive.
I purchased endpoint manager in early part of the year, I can log in to the portal with out issue, when I try and activate the system I input user name and click check, no problem enter password page greys out and the only option is to press abort.
I am trying to activate to restore the endpoint manager functionality.

Any help would be greatly appreciated
PBX Firmware: 6.12.65-22