Cloned auto flowers??
I think you got ripped off.
If they really are autos, unfortunately they will probably start flowering very soon.
If not autos, give them love and care and they should bounce back soon enough now that they have been transplanted.
Don't try feeding them just yet, wait until good growth begins, then start with quarter to half strength nutrients.
In the mean time, you could give them a dose of liquid seaweed/kelp tonic to help them recover, it is a wonderful stimulant.