Today my plants got overwatered :( All because of ...

lol I thought you were going to ask if they got nutrient burnt but you asked would it cause root rot :D one time error won't make damage to your plants don't worry.you can't overwater with one watering.and no worries they wont get nut burn.just give them some time,stop the watering system for a few days if you think pots have too much water.lift some and estimate.easy.and don't let the system do that frequently please because these pots might tend to root rot if really overwatered.I go with smart pots

Howdy. Over watered? Lets talk about it. Overall, you're good, but this will probably slow growth for a small while (possibly cause a deficiency from being drowned out. Watch for that👍). I've done this, oh...10 friggin times by now (2 grows😕). Firstly, your pots are small👍. Makes for faster moisture dispersion. When this happens to me I turn on more fans for circulation and gently till the soil around the girls, where I know there isn't a root system yet (These pots, maybe an inch down would be good.) This just expedites the process and can save a days-ish. Eventually they will dry, you'll be good to go and with another nutrient feed to catch up (not too fast...) I feel you'll be good to go. I will add, that if you're not comfortable with the above advice, doing an early transplant with highly conditioned soil (perlite and the such), move to air pots and/or fabric pots and this will the moisture will dissipate very quickly. Had one plant I couldn't wait to dry (dying) and transplants early, plus the tilling and all that, and it started to siphon that moisture out withing 12 hours... Whatever course of action you choose I wish you luck!👍. Drop me a line if you'd like. Peace 👌