Invalid peer id

HI
Sorry for my bad english
When i try to sync library, i have this error
unable to add download task
Invalide peer id

Thank you for help
Didier

Hi
Nobody can help me
Seafile serveur : 7.0.5
Seafile client 7.0.4
But it wotks on Windows 7, but not on my computer Linux , deepin os
Thank you