ESC overheating

As soon as I’m connecting my speed controllers to Navio2 they are overheating.

How can I solve this ?

can you share a picture of your setup (navio/esc/motors)?
do you have multiple BEC cables connected to Navio?

Actually, ESC becomes hot when you supply power both Navio and Raspberry.
I am preparing UBEC(+5V) for powering for those.