Took it to garage they said no error codes and the gas was fine, they did not know why it was not working , pretty useless really , then i found that the clutch was not spinning this morning. Disconnected and reconnected yellow plug on the compressor but still not spinning. it spins freely by hand so it's not seized. I am going through more coolant than usual and some vents blow colder than other vents.It's built into the engine bay fuse box. There are a number of reasons for the clutch not engaging from too low or high pressure in the system, not working cooling fan or heater blower. Have you checked for error codes or live data.
Another check is for 12V at the compressor clutch connection