Why doesn't my custom Adonis plugin command work?

Here is the code:

server = nil -- Mutes warnings about unknown globals
service = nil
return function()
    server.Commands.Gun = {
            Prefix = server.Settings.Prefix; 
            Commands = {"gun"}; 
            Args = {"player"}; 
            Description = "The said player gets a gun."; 
            Fun = true; 
            Hidden = false; -- 
            AdminLevel = "Moderators"; 
            Function = function(plr,args) 
                for i,p in pairs(service.GetPlayers(plr,args[1])) do 
                    game:GetService("InsertService"):LoadAsset(116693764).Parent = plr.Backpack         
            end
        end
    }
end