I bought a laser master 3 with 20 watt laser.when i turn it on I get error 8. I can not do anything. please help

I bought a laser master 3 with 20 watt laser.when i turn it on I get error 8. I can not do anything. please help

Constant Grbl ‘$’ command cannot be used unless Grbl is IDLE. Ensures smooth operation during a job. Error: 8 - LightBurn Software Questions - LightBurn Software Forum

90% certainty your Y belts re not tensioned correctly

Post a couple images of your belt tensioners please

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