Bad mesh simulation diverged

Hi, I was running a simulation and the simulation diverged probably because of a bad mesh could you tell me how to fix it? Here is the project link - https://www.simscale.com/workbench/?pid=6241637683655294971&mi=spec%3A850c5929-4f68-4a88-b3ab-89925dbd0be8%2Cservice%3ASIMULATION%2Cstrategy%3A67

Thanks for all you help,
Frank lucci

Hey Frank!

Perhaps this articles can help:

Ok but I have bad parts in multiple areas do I just add a bunch of small region refinements in those areas?

Yes, I think that would be a good approach.