NOID Den Blackening and yellowing leaves (new and old)

[Sandrilene]

This is a continuation from my post from yesterday I didn't mean to leave the last title so vague I was having issues posting pictures and forgot to type the whole thing it on like my 5th try.

It's not just old leaves the ones that are all black and yellow. It looks the worst on a new part of the plant the one leaf that was pretty black I posted yesterday fell off and now the top one looks the same. I tried cutting the first black part off it before i went to bed last night and it still is taking the leaf. I have no idea what is wrong with it or what to do. I took more pictures today as suggested by white but couldn`t figure out how to attach them without a url to my post so I'm starting a new one. Sorry the root picture is blurry my camera refused to focus for it. Please help I don;t want to lose this plant.