Hello,
@Djobeni, I was testing on shared hosting today and I found that for most part it was showing white screen. This is because the assets are not loaded.
I was able to overcome it by editing the environment file on LINE 63 [MIX_ASSET_URL="http://localhost/yoori_release_150/public"] TO [MIX_ASSET_URL="http://MYDOMAIN/public"].
As long as it connects to the database, the purchase code issue may not be triggered. I think you may ignore the purchase code as long as it only shows in the admin dashboard. Also find the sql attached bellow