Spotify is playing my titles but they are lagging

[Nicecoast4]

So I got spotify prenium since 1 year, but it as been 1 week since my titles have started to lag when im listening to them. Sometimes they even completly stop by themself. But usually there is like "chips" of song that are buggy, just like when you try to listen to a video and it as not download yet. I tried to listen to spotify with my samsung and my ipad, with a bluetooth speaker, aux cord, earphones and the problem is still there. I have download all of my songs and the problem is still there. I also tried to delete the cache and the app but nothing seems to work..