Might be an electrical problem with the PWM signal to the laser module from the main controller board, or a problem with the laser module itself - has it done many hours?
Please enter $$ into the console again, but this time use your mouse to select and right-click-copy the results from the console window and paste them here, scroll up to make sure you include all the settings.
Compare them to the default firmware settings here: Keep getting movement error and alarms - #10 by OrturTech
Check for differences?
There may be a v155 firmware update available?
@gilaraujo is an expert on these machines and hopefully will chime in.