Unsupported or invalid g-code command found in block on or near line 4 and line 2

Ive checked all of my connections and everything it connected properly on my atomstack P9 40W. Im not a software or computer guy and would appreciate anyones help. It was printing fine earlier today and now the laser head only moves while the other axis doesn’t move at all while framing.

When hitting start the laser turns on for a split second then turns off.

Thanks again for everyone’s input i appreciate it. I just dont know what line 2 or 4 means.

Can you share your GCode? You can save it by clicking Save GCode in the laser window or going to ‘File’ > Save GCode, then upload it here.

Have you added anything to your Start GCode block in your Device Settings?

Ensure that you have your Atomstack set up as the correct device type type- it should be ‘GRBL’. You can go to Devices, double click your Atomstack, and check that it’s set correctly there. If not, select it, and click ‘Next’ until you finish the setup process.

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