HELP plant got bad nutes burn

First grow. 6 week old autoflower. Cut off 4 completely dead fan leaves and flushed with PH 5.2-6 water. Little health progression. What do I do? When do I add nutes back in the hydro system? When and will it still produce buds. First grow

I don't know auto-flower, but for an ordinary plant, I'd say don't worry.