Bug Receiving Fatal Error after Upgrade

[Antec]

After upgrading from 1.1.7 (cannot be sure what version it was) to 2.0.2 I am now recieving the below error message whenever I enter a user's profile and select "Find All Posts". However, I do not receive the error when I select "Find all started threads".

Error Message:

Fatal error: Call to undefined method THANKS::parse_bbcode() in /home/*****/public_html/forum/vb/legacy/post.php on line 469

 

[Fillip H.]

Please re-do the file edit described in readme.txt.

 

[Antec]

It was funny because that edit was already there. But I re-saved the file and it fixed it.