I dont know where the reset button may be, But it looks like you have a pump seal leak or a leak from around the heater. I would disconect power to the tub and open the control box, there should be one or more (usually one) large glass fuse.....check it or just replace they are often the cause of problems.
Beyond that I would recomend calling in a pro, because there's a number of things that could be causing this including the board so doing shotgun repairs will rack-up the bill faster than would a tech.
I would get on that leak quickly, moisture wreaks havoc on equipment.