Late outdoor NYDiesCBD Purplebudauto

4th week with the NY diesel and purple bud, growing nice both. The purple is starting to florish, it kept too little from overwatering. Havent water them since the 28th. Seeds moistured on tupper with wet tissues on the 28th-29th, put on light mix soil on the 1st of july, soil watered with a little bit of pirahna 3/07 sweet peach auto germinated, the kush auto too, og kush auto cbd stil opening. 9/07 watered the big ones and the littles the night before. They were looking nice and put outside to the sun. When I returned 2 of them were bent, one looks really dead. I dont know if it is the heat, the watering, the tray in which they are or what, but this has never happened to me and is really desperating. They are all dying when little and i dont know wtf i am doing wrong to have this terrible luck, if somebody could help me please. Probably i am never gonna start again this late or grow autos till i have a wardrobe...