My name is Jon and I am an authorized Bosch, Thermador and Gaggenau service tech and I can help you today.
The e11 error is usually for a faulty latch/ door lock.
Have you recently used the self clean feature of the oven?
Or used the oven in a very hot temp for a prolonged period of time?
If yes, then you may have just heated and shorted out the control.
If not, and the latch error is being displayed but the oven performs as normal, then you may be reciveing a false error code.
Please get back to me here when you have time and I will go over a few things with you.