Because in most cases, it’s not the motherboard. Please exactly describe your problem.
It may be worth testing the following:
Unplug the Y-Axis switch and request the status report by typing:
?
in the Console window in LightBurn again. (as you have already done)
With the switch unplugged, the Y-Axis will report the switch as triggered if you have Normally Closed limit switch. This would suggest that you look for a broken wire on the X-Axis switch.
If the Y-Axis switch does not show triggered when disconnected, you are working with Normally Open limit switches. This would suggest that you look for a short circuit on the X-Axis Switch or unplug the X-Axis switch to see if the open circuit changes the status report.
Sitting in front of the laser engraver, The X-Axis is the laser module on the Gantry and moves left to right. The Y-Axis moves the whole gantry.
The X-Axis switch is on the module or on the gantry. This is the switch that is triggered. You should look here first.
Afortinadamente a mi me respondieron de la empresa, cambie la tarjeta y esa no fue la solucion, he hecho todas las pruebas que me han dicho y nada, lo que me di cuenta es que la luz led roja de la placa base parpadea, entonces estoy consiguiendo los cables para ver si esa es la solución
Fortunately, the company responded to me, I changed the card and that was not the solution, I have done all the tests that they have told me and nothing, what I realized is that the red LED light on the motherboard is flashing, so I am getting the cables to see if that’s the solution
@JohnJohn said in the text above it is usually not the motherboard (controller). If you want to find a solution to your problem, please follow his instructions.
Show a video how it looks like. I don’t get what you mean by flashing lights.
No sé cómo mandar un video 
pero cambie el adaptador de corriente y otra placa y ya funconó sin problema, afortunadamente la empresa sculpfun me contesto en todo momento
I don’t know how to send a video
Glad you have it running. I found Sculpfun is fairly responsive, which is kind of rare.
hola como pudiste contactarte a la empresa de sculpfun? tengo el mismo problema
Hello, how were you able to contact the sculpfun company? I have the same problem
Please describe your problem in more details. Most problems can be solved right here. 
You can contact Sculpfun via support@sculpfun3d.com. Though, they just had a holiday in China, so response might be a little delayed.
gracias! por aca se puede enviar un video? no se describirlo en palabras
thank you! Can you send a video here? I don’t know how to describe it in words
Yes, you can post a video here or upload it to YouTube and share a link.
hola como estas? a donde le escribiste a la empresa de sculpfn?
Hi, how are you? Where did you write to the sculpfn company?