Reebok I-Run treadmill - floor repair?

Hi

I have a Reebok I-run treadmill, and the floor under the running belt has cracked and a hole is appearing.

Can anyone help with advice on fixing. I was hoping to get info on removing the running belt, and replacing or covering the cracked running board with a new board maybe?

Can anyone advise as to how to remove the running belt so I can get to the floor.

thanks.