I thought I've uploaded the tracks when I launched the project. Why do it again?
There is a difference between the audio that we need for your digital release and analogue release. To get your sound right on vinyl, we need an audio track made for vinyl. Although we can still press your audio made for the digital release, but we cannot promise you a professional outcome in that case.
We highly encourage you get your audio properly mastered for vinyl. For details on mastering, please refer to this article.