Turned Bad Overnight

that is weird...i wouldnt think skipping one day of watering woul ddo that...doesnt look like you have much light that that could help...since the only thing u changed was the water i would give her some water and see if that does the trick

possibly overwatering. looks like root issues. how wet is the soil in the bottom half of pot. how many times do you usually water?

looks like toxic soil possibly N overdose i would flush immediately... make sure you have good drainage

let it dry out. looks like water issues

mine just did the same thing...i picked up the pot and it was light as a feather...so i watered it...did urs revive???