Firstly, the police don't evict tenants. You get a bailiff to do that.
Likewise, the police or courts don't 'close' a house for 3 months after an eviction. Maybe if it's a crime scene they would but then you wouldn't be talking about eviction, you'd be talking about an arrest.
As redcrx says, it's perfectly possible to insure an empty property. I think what you are saying is that you cancelled your insurance.
As you have no insurance, any loss is down to you.