Laser going, no burn

Lately, my laser (Ortur Laser Master 2) has been burning and image and then stops burning but still continues to move with the laser light on. Just stops. Sometimes I am in 6 hours on a 10 burn and it just quits.
Hardware or Software or Communication issue?
Has this happened to anyone else? How can I fix it?
and
Can I restart lightburn and a burn and just have it start back up at the spot it stopped at to try and save the project?

Thanks in Advance!

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