Fix error with non-users on Discord

source/sv_discord.rb

@@ -9,11 +9,13 @@ class Sv_Discord < Vrobot4::Server::Server
       attr_reader :real
 
       def initialize user, admins
-         @real   = user
-         @name   = user.name
-         @roles  = "v"
-         @roles += "o" if admins.select {|role| user.role? role}.any?
-         @roles += "O" if user.owner?
+         @real  = user
+         @name  = user.name
+         @roles = "v"
+         if user.is_a? Discordrb::Member
+            @roles += "o" if admins.select {|role| user.role? role}.any?
+            @roles += "O" if user.owner?
+         end
       end
    end