HELP plz

i dont know whats wrong with this one but the bottom is brown and alot smaller than the rest of the steam whats the problem and can i fix it?

Is this in a aero cloner? Has it rooted yet? If its in some sort of cloner and doesnt have roots, it looks like you got air in the stem and is rotting from the 45 degree cut and going up

its not a clone its a plant in the aerogarden have two in there roots arnt touching is it because i havnt had that top covered the whole time? and now that it is will it get better? it has alot of roots

Well does it look like it is rotting? or does it look like the stem is maturing and maybe browning a bit? Its really hard to tell because the pic is so blurry. You say you have a lot of roots? how do the roots look? are they nice and white? If so, then I would say you are good as long as that part of the stem isnt rotting away. But again, its really hard to see in that picture

Do you have some sort of collar thats holding the plant in place? Im not familiar with the aerogarden or how the plant is secured. Is there anything pinching the stem where you see the defect?

I think the root might be roting away its even small at the bottom now is there a way to top this? the plant is still growing and foriming new leafs and branchs