Thread:Extension talk:ConfirmAccount/A database query error has occurred. This may indicate a bug in the software./reply (11)

I had this same error. I noticed it right after blocking several of what I thought were fictitious users.

After further review I figured out what was causing the error. Someone at my work created an account without updating any pages so I blocked them thinking they were also a fictitious user. Well, when I blocked them I also blocked their IP address & since we have a static IP at my work that caused me to unintentionally block myself which was ultimately causing in the error message. After unblocking the user with the same IP as mine my problems went away.