Thank you for the link, I see that you have switched to compressible solver as I suggested. I’ve just looked at your mesh log and noticed you have a lot of mesh elements with errors. I’m not sure how much of a problem it is but you can try going to mesh —> refinements → inflate boundary layer and choosing all surfaces. This enables you to make the external layer finer without making everything finer (which would make your simulation heavy). From a mesh point of view it would be better to change all the rounded edges of your model to sharp corners (you would require less mesh elements and have less errors), this would however affect your results to some extent.
As for the error message you are getting regarding “Maximum number of iterations exceeded”. It’s not really surprising. It means that your simulation is not converging fast enough. In fact, look at your convergence plot, there is no convergence! Truth is that supersonic simulations are tricky to keep stable and I am not expert on them! You can read the link below for some information that might help you.
https://www.simscale.com/forum/t/maximum-number-of-iterations-exceeded/38847
Under simulation control you have used the default of start at 0, end at 1,000 and dt of 1. Given that the phenomenon will reach steady state much faster, I would set it to start 0, end 2 and dt of 0.002 (but use the write interval setting to get some intermediate results so you can see it has reached steady state). Write interval just means how often do you want to save the result to memory.
May I ask what you are hoping to learn from the simulation?