@nickpape That green and yellow cord is the ground wire and should be affixed where you see the ground symbol at 1:45. If you think the overflow didn't get into the electronics, I would reattach that ground "fork" terminal to the casing using the screw and some of the washers left in the pot. Alternatively, for testing, you could just stick the "fork" part of the ground wire down with metal tape.
The decision is up to you. If you don't think the liquid seeped into the electronics, give it a test. Otherwise, we'll need to see the back of the electronics section to figure put how to remove it.
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