I moved several large video files from my Windows 11 PC to the dropbox folder. They are very large files and Dropbox is telling me that it will take many hours to actually upload them. I changed my mind and have determined that I really don't need them in Dropbox, but I can't get Dropbox to abort the uploads. When I delete the file from the Dropbox folder on my PC I get a question as to whether I want to delete the file everywhere, which I do not. There is a link for "other sync options", but when I click that I get an Error 500 display. Is there anything I can do?