Error when trying to update Endpoint basefile

I’m running FreePBX Distro 13.0.74. I have all of the latest updates for all modules installed.

I’m trying to edit the basefile for a Grandstream GXP2160 and am getting the following error:
Undefined index: description

I was able to successfully edit the basefile about a week ago.

I tried a different browser in case there was trouble with Chrome, but had the same problem. I tried deleting and recreating the template. I’ve reboot the PBX of course. I have the same problem with the same phone on another PBX running the same version of FreePBX.

Any suggestions? In case this proves hard to fix, can someone tell me where to find the actual basefile so I can download it with WinSCP and do a manual edit, if necessary?