Your EC is double what it should be, your plant is too young for max levels like that. Cut it waaaaay down, to like half that level. As the plant grows it will take a higher EC. You seem to have lockout combined with the overwatering that resulted. My advice would be to flush the system and run quarter strength nutes for a couple days until they perk back up. Then increase to half strength. Ease the light up a little as well, since the plants can crisp up as they try to recover. I've had this problem. It's much easier to solve with hydroponics. Ur good.
I am having to take my own advice!