[Linphone-users] Problem getting flatpak on kde neon lts

[E.kousou]

Hello,
I am trying to install the flatpak on latest kde neon lts but i get this output

$ flatpak --user install --from linphone.flatpakref

Installing: com.belledonnecommunications.linphone/x86_64/4.0

Required runtime for com.belledonnecommunications.linphone/x86_64/4.0 (com.belledonnecommunications.Platform/x86_64/1.6) is not installed, searching...

Found in remote bc, do you want to install it? [y/n]: y

Installing: com.belledonnecommunications.Platform/x86_64/1.6 from bc

[##                  ] Downloading files: 257/7150 7,5 MB (393,1 kB/s)

error: While pulling runtime/com.belledonnecommunications.Platform/x86_64/1.6 from remote bc: Socket I/O timed out