Start off by logging out and back in to your Spotify account to check if it makes any difference. If you still get the error message after that, try performing a clean reinstall of the Spotify app on your device since this will get you the latest app version with all necessary updates.
You can also send us a screenshot displaying the error message you receive. Just attach the image to your next response to us by using the Insert Photos option in the post editor. This way we can take a closer look at the issue.
Tip: Make sure the screenshot doesn’t show any sensitive info such as payment or personal data.