My rabbit won't stop!?

You can spray on bitter apple or a product called fooey or rub ivory soap on the bars. the fooey you should be able to get at any pet supply store, the soap is easier to find at any store really. You need to be consistant and everytime you see him chew you clap your hands and say NO. I have one just like yours and he used to do that as well, and the running is probably just showing he is happy and he wears himself out so at night he goes to sleep ready for another day of hopping around. Good Luck:)