no, not only did the database pass away, file-info also died despite having nothing to do with the database at all.
the reason here was our provider strozzo updating their crappy virtuozzo-hosts, which cutted for some crazy reason the balls of our perl-core.
no more perl-modules left.
no more file-info there, for this relies in parts on Phil Harveys Image::Exifinfo, a really great piece of software.
thanks to an anonymous comment moaning about the nunfunctional file-info. the perl-modules are reinstalled, file-info is working again as it did.