First thing I would say is have your local reseller's Post Processor team handle any changes to your Post. If you want to do this yourself then you can find where you Posts are keep or at least being searched for by SolidCAM in the attached screen grab. Your folders may have been moved around and that is why you can not find the GPPTOOL folder by this address in your SolidCAM Settings is where your SolidCAM is looking for the Post files.