Forum error with "HideForm Plugin"

[cibes]

Since today i get this error message in my browser whenever i open a forum or post:
"overLIB 4.10 or later is required for the HideForm Plugin."
everything seems to work fine but the messageboxes are getting on my nerves. was anything changed with the forum? Or do i need to install something?

[cibes]

Well, i did some research on this.
I still don't have a clue why this error occurs, but it seems to help to clear browser cache.