Best answer by Mathis
Sorry about the troubles. You've currently uploaded 129 minutes of content to your account, so you have quite some time left for more uploads. It could be that the deletion process took a moment to fully process your deletions when you were trying to make space on your account?
Either way, you're now good to go for new uploads. If this is still not reflected on your end, please sign out, restart your browser, then try again.