Looking at your profile I see you have a Full Spectrum Laser. Have you changed the controller of this system as LightBurn does not work with the FSL stock setup. I am not familiar with their controller menu system or where they might expose this information if tracked.
For Ruida controller (RDC6445):
System Info - Select the “System Info” entry under the controller setting interface, press the <Enter> button, and then pop up the interface as follows:
Total on time(h:m:s): 99999:59:59
Total processing time(h:m:s): 99999:59:59
Prev processing time(h:m:s): 99999:59:59
Total laser on time(h:m:s): 99999:59:59
Total processing times: 9999999
X total traval(m): 9999999
Y total traval(m): 9999999
Mainboardversion: RDC-V15.01.00
Press the <Enter> key to read motherboard information. Press the <Esc> key to return to the previous menu.