Hello. In case you used this addon for a while the new default position for the addon is on top of the sidebar like this: https://i.imgur.com/q0aH44G.png If you click on the button at the right after expanding it you can move it to the description and it will remember the position.

Edit: Do you have that issue for every song? If so can you give me additional information like a link to a song and all the other addons you use so I can try to reproduce the problem? You can also email me here: YAqhVsOB341c4CjF@protonmail.com