Error:8 La commande Grbl '$° ne peut être utilisée sauf si Grbl est IDLE. Garantit le bon fonctionnement pendant un travail

[JohnJohn (John Johnson)]

I have found a good resource for Alarms and Error Messages:

GRBL Alarms & Errors - gSender CNC

It seems that the engraver is active. You may have a project in memory.
Does your engraver have an SD card slot?

Do you usually connect to the engraver by USB or wireless?

You could clear the memory by unplugging power and USB from the engraver and then turning it on again.

This may be a similar problem:

Error 8: Grbl ‘$’ command cannot be used unless Grbl is IDLE

I have updated the Lightburn before this project (not sure if it is related). My laser stop in the middle of the burn. How do I continue without restart the project please? Desperately need your help. PS. I am using Ortur Master 2 15W Thank you.