Cannot insert playlist

[OlciOn]

https://open.spotify.com/user/lanotek/playlist/6RTpGhp7slj9D1NKFXXnWZ?si=wX6IO9IgRrusuumDc7_L5AI can't share my playlists in playliat exchange. The links are valid but not accepted for whatever reason. It also works as an attachment in the same page, but algorithm doesn't allow me to post since my Spotify url which is just recognized by the same website cannot be found. I attach the playlist to show that it's public and accessible by all means. Proof