4 Buttons do not work on Canon g7x

Hello! I need help!!

I have had my canon g7x for a year and 2 months and about a week ago 4 of the buttons stopped working. The "ring function" button, the rocording button, the playback button, and the "menu" button. None of them respond when I press them and I don't know why.

I'm leaving for a week long trip in a week and I really want to use this camera so I really need help! I went to a camera repair shop and they said it would cost over $200 and would take over a month!

Does anybody have any idea on how to fix this?