vBulletin Mods

Hi,
Today I view that, Google was indexed my site (when I type in google the name of my forum) with this tittle:

"The Facebook Platform - My name Forum"

I don't know for what reason was indexed "The Facebook Platform", and I don't want indexed with this tittle.

For the moment, I disabled the FB Platform, but I have enabled this feature since all years ago that are available in VB.

For me its a mistery becayse I don't made any change for appears FB in the title.

Its possible change or solved this?

Thanks in advance!