Coppercam configuration to work with GRBL 1.1

Hello, I just don't seem to get coppercam generating GCode which gives no errors when I test them on the machine ( Arduino Mega - GRBL Version 1.1 ).
I allready followed a " tut" but doesn't work, and I would realy get that PCB milling problem solved. " the bread bord" just doesn't do it anymore... .
I assume that the codes which are generated are not supported with my Grbl setup. So my question(s) is/are :
- Is there a possibility to make them compatible?
- How?

If it could not be done, are there alternatives which are already tested on GRBL 1.1?

Thx for coop,

Alex

As I wanted to continue I started to try Flatcam. Which gave some pretty good results ( no more errors when loading ), still have to test in real.
There was a very good link ( https://www.inventables.com/projects/how-to-mill-a-through-hole-pcb#instructions ) which shows and explaines all.

Should someone still have a solution for coppercam I would be glad to know, but the problem is solved.