The clutch disc has probably become "stuck", either to the flywheel or to the pressure plate because you drenched the machine with your washing.
The clutch pressure plate is probably working/moving normally but the clutch driven disc is stuck to one of components mentioned because rust forms pretty quickly on these type of surfaces.
Start the engine in neutral and let it run for a bit while you operate the clutch pedal repeatedly and if it is just a sticking disc it should break free at some point.