Thanks for coming to the Community for help.
Could you please send over the following details? This will help us and make sure that we have all the info we need.
Version of Android:
Version of Spotify:
Does the SD card have at least 1GB of free space?:
Does removing the SD card, reinstalling the app, then reinserting the SD card help?:
Do you have another SD card you could try with?:
Keep us posted.