you already have a thread asking about the exact same topic:
forum.linuxcnc.org/38-general-linuxcnc-q...7775-code-g71#338257
Please continue there.
You have been given a working example gcode. Have you tested that?
Also, you are not providing much information to go on.
Usually a good idea to provide a minimal example of gcode with an explanation of what exactly is not working how you expect it to.
