Film Insurance for filming at Hillsdale Elementary School???

I’m looking to buy film insurance today for a movie shoot out in Sacramento County?  At Hillsdale Elementary School?

I’ve looked at some film production insurance in Jersey-(UK—crown-dependency) and small business insurance carriers in Jersey-(UK—crown-dependency), but I’m only finding katyroom.com that had affordable insurance for my movie production.

It’s a School in Sacramento, CA.

Can any one help?