rfpkg: can't clone repo

Hi, get this error message: [martin@f28 ~]$ rfpkg clone free/shotcut Cloning into 'shotcut'... packet_write_wait: Connection to 212.129.31.198 port 22: Broken pipe fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. Could not execute clone: Failed to execute command. How can i solve this ? Thanks Martin