Hi @oliverbeirne
Try these basic tips:
• Clear the app cache in Settings -> Data & Storage -> Delete All.
If that doesn't work →
• Increase the app cache in Settings -> Data & Storage.
If that doesn't work →
• Sign out of Deezer and sign back in with your email and password.
If that doesn't work →
• Uninstall the app and reinstall it from Google Play, the Apple Store, or the Deezer download page.
https://www.deezer.com/explore/en/download/
If that still doesn't work, please contact support for help with the issue on your device.
Deezer's online chat is very good; the chat entrance is in the bottom right corner.
https://support.deezer.com/hc/en
Or via the Deezer contact form.
https://support.deezer.com/hc/en/requests/new
Best regards, and keep the music flowing.