You didn't provide much information on your issue, could be many things. Uploading your project could be helpful. Here's a few things I would try:
-Make sure your model is made of solid bodies, not surfaces
-Check your mesh settings, especially the narrow channel options (make sure to set the diameter of your routes)
- Do a geometry check and click on "show fluid" to see what your fluid zones are
did you add lids to define your fluid volume? There seem to be no boundary conditions using these lids?
problem occuring in mesh, solidworks says define shell thickness. When I do my system stop after a while as I believe due to huge geometry. And after a while system stop abruptly.
I thing something is wrong.
Can you upload your model including the simulation?