Error getting group members: [object Objetc]

Hello,
Suddenly I started getting this error when I’m reading a group members from the Authorization Extension:
{“statusCode”:400,“error”:“Bad Request”,“message”:“[object Object]”}

The call used to work, but started failing when I deleted a user that was in that group, then I removed it from the group. If I try to access the group from the Authorisation Dashboard I get the same error: “Oh snap! An error occured while loading the members: [object Object]” you can see it in the image attached.
I’ll appreciate any help. ![alt text][1]

By the way I tried deleting the Group and created it again to see if it had anything to do with the deleted member, but nop, its failing again with the recently created group. Besides on the Extension Dashboard sometimes it shows me the members and sometimes it doesn’t. Weird erratic behaviour.