Sculpfun S9 doesnt connect


I received my S9, did some engraving tests and everything worked perfectly.

Yesterday I bought some wood to do other tests, such as cutting, but then the computer does not connect to the machine.

In LaserWeb it appears Machine connected, after about 5 seconds:

No supported firmware detected.
Closing port /dev/tty.usbserial-210
machine disconnected

Does anyone know what can it be? Is there any test to do to find out where the problem is?

Don’t think that LaserWeb is compatible with that machine?