When I try to reset password from email link I get this error

[frpcityone]

An error has occurred
Invalid activation code

Reminder.php looks fine as per the post in 2007 but its not working I cannot reset password.

[Steve]

Please don't double post. Thanks.

[Sir Osis of Liver]

SMF version?  PHP version?  Anything in error log?

[frpcityone]

SMF Version 2.1.3 php 8.0.28
Errors:
Database Error: Data too long for column 'data' at row 1
2: Undefined array key "sa"

[Sir Osis of Liver]

Mods?

[frpcityone]

No mods.

[Sir Osis of Liver]

Both of those errors have been reported previously in various contexts, but don't see anything about either affecting password reset.

This is a 2.1 issue, can a mod move it to correct board?

[Diego Andrés]

2: Undefined array key "sa"

This might have been fixed here #7703 for the next patch (2.1.4).
I'm not sure about the other issue. Did the error indicate a line inside the file? Could you describe the steps to reproduce it consistently?