For Liquid State to be able to publish your app in the App Store under your name, you must first invite Liquid State to your Apple Developer account. As of 2019, this can be done directly from App Store Connect.
To add Liquid State to your Apple Developer Portal and App Store Connect accounts, you will need:
Enter the details provided to you by Liquid State, specifying the following:
roles should be Admin
make sure you grant access to either all apps or to the correct pre-existing app
Click the Invite button. Liquid State will be in touch with you to confirm that the invitation worked fine.