I screwed it up all by myself. Knew better but did it

I screwed it up all by myself.
Knew better but did it anyway.

I used the ultimate branding and changed user to member to eliminate the confusion for my team members. Worked great!
Until...,
Now sending the user invites and confirmations the emails say MembberNAME instead of pulling the User_Name.

I corrected the mistake in Ultimate Branding, but it did not fix the messed up setting.

Is there anyone who would be willing to tell me where to correct the default emails? The "USers" should be told the correct log in information.

Thanks in advance.
Richard