here are a few reasons why Deezer might not be showing on the Lock Screen of your iPhone 14 Pro running iOS 16.5.1. Here are some of the most common ones:

• You may not have enabled the Deezer widget on your Lock Screen. To do this, open the Deezer app, tap on the More tab, and then tap on Widgets. Select the Now Playing widget and then drag it to the Lock Screen.
• You may have disabled notifications for Deezer. To check this, go to Settings > Notifications > Deezer. Make sure that the Allow Notifications toggle is turned on.
• There may be a problem with the Deezer app. Try restarting your iPhone or reinstalling the Deezer app.

If you've tried all of these things and Deezer is still not showing on the Lock Screen, you may need to contact Deezer support for further assistance.