Can not check into workgroup PDM

One of our computers will not check in any parts to workgroup PDM because it is trying to change every part to a tool box part. We can transfer the models to other computers and then have no trouble checking them in so it’s not an issue of just changing the part with sldsetdocprop.exe, I'm sure the problem is in the PDM settings but as I am new to the PDM system and we have released our IT person I am trying to find a way to fix this myself and I have no idea where to start. Any help will be greatly appreciated.

SolidworksWorkgroup Pdm