Subashni Ravichandran
Ansys Employee

Hello oni

The Output file you have shared says "Please check Turbulence setup". 
I would recommend you to go through all the boundary conditions and make sure the problem is completely constraint. 
Also, I would recommend you to please go through Judging Convergence topic in the Discovery AIM Help document. 

If these suggestions do not help, could you please share the model with us so that we can help you better?
I can share a secure transfer link in case the model is proprietary.