Doubt regarding flightstream, why are my Cl values this unrealistic?

Hey everyone, I tried to simulate flow around a 777 generated from VSP, I did all the steps properly, like uniting, removing all degenerate faces, marking all trailing edges and wake termination nodes, but my simulation still isnt working.

I also did proper meshing according to this vide -

FlightStream Tutorial: OpenVSP to FlightStream using p3d

And why is the contour just yellow? Cl values are also astronomically high after a few iterations