I can't download songs from my Jellyfin server

[GIutister]

Before, i was able to download songs from my jellyfin server, i was using SideStore to sideload the application.

I changed signing method, and i'm now using kravasign, but the download function is not working anymore. When i click on the download button, it starts like it is going to download and then it does absolutly nothing. Do you perhaps have a fix for this issue ? Or do i need to bring this to the kravasign devs ?