Ethos 1.6.6: X18 can't get working GPS (configuration issue)

[Warfull]

Hi,
Transmitter : X16, ETHOS 1.6.6
Receiver : TD R10
FC : Pixhawk4, Ardupilot 4.7.0
S.BUS + S.PORT (didn't get a working set with FBUS).

What is the correct config for "GPS source" ?
When "GPS source" is setup with nothing I get an error message : "main.lua:807:Attempt to index nil value (local sourceLat)"
When I go to Yaapu Debug, 0x5000 to 0x5007 are green and actives, the other is white and no activity.

[yaapu]

Hi you need to discover your sensors, the only sensor that my widget requires in ethos is the GPS one, once is available you'll see it as selectable