Password mismatch

[vk_knight]

After I merged from phpbb all of my passwords were good. Now all of a sudden after I implemented the Square them all the passwords are saying mismatch.

I tried using other themes too but they are too saying password mismatch. What's the fix for this?

[.m.]

changing theme does not affect passwords.

may be you are getting authorization code mismatch issue !
see related guidance here => Authorization Code Mismatch

[vk_knight]

I found this post. https://community.mybb.com/thread-218436.html

It helped. Thanks anyway.