help weird things happing to my beauty

Hello everyone my friend has a plant and it has been flowering for a couple of weeks but a terrible thing is happing to it the bottom leaves and bud are rotting away will all the bud rot away?

When you say "rotting away" do you mean bud mold or yellow leaves or what?
If you go into more detail, you'll have a better chance of getting an accurate answer.

lower leaves die off during late flowering because the bud is pulling all the nutes I think. But its natural bro. If it bothers you maybe give it some bloom nutes so its not feeding off itself

Pics would really help a lot. When you use the word "rot" that usually means bad things, but if the bottom leaves are just curling up and turning yellow/brown then that's different.