Disposal Switch / GFCI combo doesn't work

All of a sudden my combo garbage disposal switch which is right next to a GFCI outlet doesn't work. Neither part works.

I reset the fuse box and pressed the buttons in the middle of the outlet, and no change.

I have a Receptacle Tester for GFCI and it gives me no light.

What do I do besides call a professional?

I haven't taken anything apart.