I have installed the mod in my nitrado server. All other mods are working but the backpack does not appear when i start the game.... i dont get the permissions to work.. trying the oxide.grant <user or group> <name or steam id> <permission> but permission say its doesent exist... I have tryed the backpacks.admin command at permission but its the same... it not exist... 

and when i try to use the chat funktion it says i dont have the permission... 

What can i do soo new players gets the backpack on start up...

Coldplay

Since it says you don't have permission when you use the command, that indicates that the plugin is probably loaded (or that another plugin has registered the commad). If the plugin is indeed loaded, then the only reason for the permission not existing is that you have typed the wrong permission. Please paste the exact command that you attempted to run to add permissions.

i have copy paste the command from the page of backpack her at umods... 

What is the right command? more what is the permission i need to add?

Please read the docs or see other threads with the same question. Once you figure it out, please state what your confusion was, so that I can determine how to improve the docs.