I Add-In SolidWorks Workgroup PDM, and there is a messagebelow pop-up everytime I start my SW:

" The DWG Document Manager library is invalid or missing. Pleasesee your administartor"

Can anyone advice me how to deactivate this message?
What setup should I do?

Thanks

P.S: I had uploaded a pic file for the meesgae boxSolidworksSolidworks Pdm enterprise Pdm