I have an error code E207 for my Bosch oven

Error 207 actually has nothing to do with your control board. It means something is wrong with your door latch getting into the correct position. Try to wiggle the door latch hook, close the door, and flip the breaker off to the oven for 60 seconds. Re-apply power and see if the latch will reset properly. If not, then the latch needs to be replaced