Bizrus,
Yes, you can trust us with your credentials, but good guys and bad guys would both say that, so it doesn't mean much
What I'd recommend instead though, is the following:
1) Re-Install the JFBCLike module - This will overwrite any changes that may have been made. From what I saw, they shouldn't be necessary and we're causing problems anyways.
2) Edit any instances of the JFBCLike module, check that the "Intro Text" box is blank. Hit save. This will clear out anything that shouldn't have been in that box, just in case that's where the change was.
Test.
3) If it still doesn't work, look and see if the following directory exists: /templates/ja_mesolite/html/mod_jfbclike
If so, delete it. It's ok
Finally, if none of that works, then feel free to Private Message us some admin credentials to your site and we'll figure it out for you. You can PM me by clicking the arrow under my name (<----) and hitting the mail icon.
Good luck, and glad we narrowed it down!