Could anyone please help me understand the meaning or possible cause of the following error?

"14040 - Channel%1 block %2 error in end point circle"

I can run programs that are generated by FeatureCam without a problem.

I'm trying to use the CAM features of Inventor HSM 2017 as the interface seems easier to use. It has a post processor for a Sinumerik 802C. I have a Sinumerik 802S. My understanding is that the S denotes stepper drives and C, servo drives. Will this make a material difference to the G-code Generated?

To help resolve the issue, it would be very helpful if anyone could give some insight or explanation for what the error means

Many thanks!