The Sauvecraft 3 is now upgraded to the 1.3.2 version. So you need to upgrade you FTB client to the new recommended version of 1.3.2
minecraft-instances.gobeline.com
Welcome to Lanord'S Server !
Player(s): 1/4
Version: 1.21.1
minecraft-instances.gobeline.com
Welcome to Lanord'S Server !
Player(s): 1/4
Version: 1.21.1
The Sauvecraft 3 is now upgraded to the 1.3.2 version. So you need to upgrade you FTB client to the new recommended version of 1.3.2