Group Error Message in Groups Reported by Both Current and Pending Members When Trying to Join Groups, both Mine and Others.
Some of my pending members have reported getting a "sorry an unknown error occurred while processing the request" when they've tried to join both my group and other groups. Please look into the issue, fix it, or find some way to ensure that it doesn't occur again in the future.
RoseAnn Duplan commented
I am having the same issue and getting help is impossible!!