New users unable to sign up

[debryc (Deborah Chang)]

Our site administrator tracked down the solution via this forum! Thank you all.

Discourse DB Error When Creating New Users via SSO Login

This relates to this code: https://github.com/discourse/discourse/blob/b9954b53bbaf65d3c5ff6eb9a1f321a61408e768/app/models/user.rb#L1389-L1405 What happened here is that we amended the index on category user like so: https://github.com/discourse/discourse/blob/b9954b53bbaf65d3c5ff6eb9a1f321a61408e768/app/models/category_user.rb#L215-L216 Do you have a group that is both default watched and default tracked in site settings. Look at: default categories watching default categories tracking def…