Can't delete a folder as I'm not the administrator

I'm starting another new post here, because the system won't let me answer this question from @Megan:

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Hi @Megan,

Let me explain, it is an individual account, that is, totally personal. Initially I created a folder for myself and a friend, I was the owner, but then I made the mistake of giving my friend ownership. This friend unfortunately no longer exists. And that folder stayed inside my user, without being my property.
Currently I removed it from my space, but I couldn't delete those public links that I had to see the content of those folders. The point is that now those files are drifting and if someone accesses those links they can see the content, which is private, that's why I demanded that the Dropbox administrators delete it, since it is impossible for me and there is no way to contact with them, with the owners of the Dropbox site. I'm trying to report it through the link to those files, which I still have, but they ignore it.

"Hey @lunalunare, were you the one that created these shared links, or the owner?"

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I create those shared links