You must have assigned a "pool" type circuit function to the Aux 2 button. This is actually OK if you want that button to start your high speed cleaning mode on an "egg timer."
If you have the ET user's guide, and are adept at reading Pentairian (a language vaguely similar to English), your best bet might actually be to reset the EEPROM and start from scratch. At least that way you know where you're starting from.
Looking at your photos, I guess your pump is not connected to a relay but gets power directly from a breaker, and is controlled by the ET's serial cable. It might help if you could
fill out your signature with your equipment list.
I also see neither of your breakers has the GFCI function. Both pump and light breakers should be replaced with GFCI breakers. The label on the inside of the ET panel should show you which kinds are needed.