Why?

Find yourself a fabric pot (like GeoPot) and drip pan. It will keep you out of trouble, watering wise. That plastic thing grates me. 😆

Without something we dont see being amiss... Damping off Its a fungus that stretchy plants are susceptible to getting that weakens the stem causing it to collapse. Propping it up doesn't hurt but the main point is to clear the problems. A 1-2% solution of hydrogen peroxide given as a watering right at the base of the plant (where the problem lays) Doesnt hurt it just gives the plant more O2 and kills the fungus. Next get more light on that poor thing if you can, you want the bluest light you can (daylight led bulbs work). Wont take a lot but every bit helps 👍

This is damping off man, it could be due because of overwatering, bad soil or heat stress :)

Ím a first grower. I have 25 watts led.. I know is not good for it... And maybe overvatered today i add some water... This is a royal gorilla automatic

overwatered????

You have a fan on it? Stem looks like it’s stretching. What’s the watts on your plant? 100w is a good start Use a stick to hold it up for a little and have your fan blow on it. She’ll stand right up