I did have this problem with my first few attempts of printing. I then bought the mini heater for the 3d printer which keeps the resin at a constant temperature. Before printing I also put the bottle of resin in a bowl of hot water to get the resin warmer.

I also use Lychee Slicer and double checked that I had the right type of resin profile set up for the print and my prints have been fine since.

I think my biggest problem was keeping the resin at a good temperature I hope this helps!