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This is what Bosch say about it.
F: 63 Functional-safety-error - processor is broken SAFETY ERROR - switch ON/OFF for reset Normal mode
- washing program is aborted - replace control
- door is unlocked, if possible
- operator control actions are blocked
- the current indication is frozen
Basically, it would appear that the main pcb has gone faulty. (This is the "replace control" instruction).
I've no doubt you've tried switching it off and on again. Try unplugging it for 20 mins.
How old is the appliance? Bosch machines have a 2 year warranty.
Hope this helps.