Toy Corolla A/C

I have a 2005 Corolla. My ac won’t turn on all the time. My first trip of the day it will turn on and be nice and cold. Once I stop somewhere and try it again it won’t start. All the indicator lights come on but no air. What could cause this?

For starters, a bad low or high pressure switch. A bad WOT cutout relay. A bad electrical connection to the compressor clutch or anywhere else.