MyBB Community Forums

hi!
i have no idea whats the problem in my forum, but now i cant see any attachment button on thread.
but somedays ago every thing was working fine, please let me know what changes are required??

Have you installed any plugins, or modified any attachment related settings since it was working?

actually a few days back, by mistake deleted some of files, and i replace missing files with new one, now forum is working without error, but attachment is missing
is there any tag required in code? i which file i need to check?

Attachment button? Not sure what you mean, can you provide a screenshot or URL?