Repetier Host GCode Not Working

I’m having a strange error uploading gcode over cable using Repetier Host. I can move the CNC with the manual controls just fine, but when I run the crown g-code, it shows a bunch of “Unknown Command” errors. Why might this be occurring? Is it an issue with Marlin?

 

 

Is it Ryan’s gcode, or yours? Can you post a screenshot of the errors?

Odd, I attached a screenshot in my post but I guess it didn’t work. It is Ryan’s gcode of the crown (I downloaded it directly from this website)

Screen-Shot-2018-12-06-at-22.24.28.png

The rest of that error file is more important, namely the first few lines. Also you need to give a lot more information. Board, computer, firmware, software. All you have told us is your stuff isn’t working the way you expect.