> "If the captain could figure it out, so could the computer."

The autopilot had disengaged, most likely because the pitot tubes had iced over.

The aircraft system entered ALT2 mode, where bank-angle protection is lost. Protection for angle-of-attack is also lost when 2 or more input references are lost.

You might describe these circumstances as the computer saying "I don't know what the heck's going on, you humans figure it out please".