Won't let me upload a Piper preset I made

[Whiskeylove]

I've been trying to upload a Piper preset I made using someone else's Wonder Woman preset (I obtained their permission) and when I try to go to the next step after mod details it keeps telling me I don't have permission. I've never had this issue before and I'm not sure why I can't upload it. I was able to upload presets on skyrim no problem but for whatever reason It won't let me on fo4. any ideas as to why this is happening? I have no strikes on my account and haven't received any notifications of any wrong doings. I try to do it again and then it just tells me the title I chose is already in mod database (only after denying me permission and trying again)