clutch pedal wont come back up

If no other clutch related problems lately.... Check clutch fluid level in clutch master cylinder.. IF fluid is ok possible failed clutch master OR slave cylinder! Try pulling pedal up by hand and pumping pedal, 'several' times, to see if pressure comes back!!.. Now, IF fluid is low/empty.. Replace master cylinder and slave cylinder then bleed system until pedal returns...

You need a new clutch