Export your project in a YouTube compatible format, then use their uploader in lieu of a direct VP upload. https://tinyurl.com/hcdrpts
If Videopad balks at mp4, try AVI. If that doesn't work, download and install the 'free' version.
The unlicensed version is not to be used if you advertise or monetize the video. Pay for the Masters Edition.
In any case, you won't have to start over.