How can I modified my old map?

Hello,
A few years ago I created a map and today I want to modify it but when I log in with my account on Umap I can’t find it in my maps and of course if I want to edit it without being connected I can’t.
What i need to do ?
Thanks everyone!

Hi gmgiadinh176, did you read these lines & pages ? And no I dont have experienced using uMap.
https://wiki.openstreetmap.org/wiki/UMap