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Did you have asked in the official DTube discord? There is always a help ;)

I did and they told me a few things to try but I still get an error at the end of the process to upload a video even though I already uploaded the video and follow all instructions so I gave up trying

What kind of errors? Any specific message you can share with me on discord? Please leave this post because it doesn't have something to do with the DTube upload process :)
Just contact me on discord: tibfox_Norman#5331