First, someone needs to clean up the artist "Edwin" - there are albums in there that belong to at least three different artists.
https://open.spotify.com/artist/6KGoYByQcKFk2PJRuer0oq
Second, you need to make it easier for us users to point this stuff out and suggest fixes to your database. In some cases you have the same artist in there twice, in other cases you have the wrong albums associated with the artists (and the wrong related artists as a result)
Hello and thanks for your post!
You can report wrong metadata / broken tracks by just sending feedback via the official contact form. 😉