Can't grant perms / No config file?

Tried granting perms to even use the quest commands in console, but says I can't grant permissions.

(we use carbon, so just the general c.grant group admin quests.use)

Also, I noticed that a config file wasn't created after I uploaded it to the plugins folder. All the other plugins I've done are working--I got the NPC and waypoints working, but quests just won't make a config file and won't let me grant any perms.

Is there a missing config file I don't see?

Ok so i got it working but without the crafting quests .
so as a temp fix (without the Crafting quests) take out the craft section starting from 407 to 414 , I don't have the knowledge to fixed this only take it out for it to work.
so take out this save and it should work till someone can fix it 

//Craft
        void OnItemCraftFinished(ItemCraftTask task, Item item)
        {
            var player = task.owner;
            if (player != null)
                if (hasQuests(player.userID) && isQuestItem(player.userID, item.info.shortname, QuestType.Craft))
                    ProcessProgress(player, QuestType.Craft, item.info.shortname, item.amount);
        }