It would seem that the supply to the Economy Seven part of your circuits have become disconnected. The meters inside the box and the wiring up to the point of the main fuse (the sealed electricity company one) are the responsibility of the electricity distribution company, so you really need to contact them. Note that this is the DISTRIBUTION company in your region - who may not necessarily be the company that supplies your electricity. I am not sure what the position is regarding any payment if the wiring has became discontacted because of vandalism.