Good day everyone!

I got the issue that I'm trying to reward my players with backpack slots on vote confirmation (giving them 1 row, equal to 6 slots of backpack per vote). That is working with the Permission 'backpack.use.1-5', so on vote confirmation it does say in chat that the player has been rewarded with that Permission but in console it's saying the Permission wouldn't exist... In the following I'll send parts of my config file. 

"vote1": [
"oxidegrantperm: backpack.use.2",
"money: 300"
],

That is the example for the 1st vote, i tried it with 'oxidegrantperm: backpack.use.2' aswell as for testing with 'grantperm: backpack.use.2-2d'

Can anyone help me with that issue? The Plugin i tried to give Permission for is 'Backpacks'.

Thanks in advance.