Several months ago I disabled Last.fm scobbling through the Spotify app on my android since I installed the Last.fm app and have since been facing an issue with scrobbling turning back on by itself everytime I open the app. When it turns back on, I always get a notification saying that my Last.fm information is incorrect.

Is there a way for me to erase any Last.fm information once entered so that it can stop turning on and showing this notification. I do have the scrobbling enabled on my desktop Spotify client but I do not want it on my phone. 

I am using a Samsung Galaxy S6, with version 6.0.1 (although I was also experiencing this issue prior to updating to 6)