No Response When Clicking the Play Button

Open the Lyricify main interface, click the play button, and it does not start playing, showing the messages Premium Required, No available devices found, please open your Spotify client, or 429 Error, please try again later.

Causes & Solutions

Message Premium Required: Cause
Message No available devices found, please open your Spotify client: No available devices found, please open your Spotify client, or configure Use Lyricify Built-in Playback (not recommended).
Message 429 Error, please try again later: Cause