Installation for PulseAudio doesn't work

[Bloodmoor269]

Trying to install jdsp on Raspberry pi 4 (debian trixie arm64) i did apt update and upgrade today

I installed flatpak and got error when trying to install it

sudo flatpak remote-add --if-not-exists thepbones-repo https://raw.githubusercontent.com/ThePBone/flatpak-repo/main/thepbone.flatpakrepo
flatpak install me.timschneeberger.jdsp4linux.pulse

Error: Warning: Could not update extra metadata for 'thepbones-repo': GPG verification enabled, but no summary found (check that the configured URL in remote config is correct) Looking for matches… F: An error was encountered searching remote ‘thepbones-repo’ for ‘me.timschneeberger.jdsp4linux.pulse’: Unable to load summary from remote thepbones-repo: GPG verification enabled, but no summary found (check that the configured URL in remote config is correct) error: No remote refs found for ‘me.timschneeberger.jdsp4linux.pulse’