I'm using layer 3 and layer 4 for the power routing, so there are many vias through layer 3, layer 2 to layer 1.
Then there are some short circuit problems when some signals pass through the vias. Is there any option to avoid this kind of problems? Can't the tool detect these short problems and avoid these?
Without seeing the power route floorplan it is difficult to tell what the problem is but if the router is creating shorts through power vias it sounds like your design is too congested by the power vias. Could you post a picture of your floorplan showing the power routing?