Can't join maps

So when im trying to join some maps like Customs or Lighthouse (and prob some more) i cant becouse of an error that pops up right at "local game starting" and the error is listed below, does anyone know a fix?

Quote from chomp

Issue is caused by a mod. Remove all mods and add them back 5 at a time until you can figure out what's causing it.

For some godspoken reason the "friendly PMC" mod made these maps unplayable, thanks!