if( @sign_text['1'] == 'The Walls'){
                    assign(@joined, get_value(concat('me.pixelart7.thewalls.joined.team.1')))
                    assign(@joined, array_merge(@joined, get_value(concat('me.pixelart7.thewalls.joined.team.2'))))
                    assign(@joined, array_merge(@joined, get_value(concat('me.pixelart7.thewalls.joined.team.3'))))
                    assign(@joined, array_merge(@joined, get_value(concat('me.pixelart7.thewalls.joined.team.4'))))
                    if( array_contains_ic(@joined, @event['player']) ){
                        # exit thewalls
                        assign(@joined, get_value(concat('me.pixelart7.thewalls.joined.team.',@sign_text['2']))) # <--- LINE 1
                        array_remove_values(@joined, @event['player'])
                        store_value(concat('me.pixelart7.thewalls.joined.team.',@sign_text['2']), @joined)
                        call_proc('_set_sign_thewalls', @event['location'], @sign_text['2'])
                        msg(concat(color(a),'[TheWalls]->exit',color(f),' คุณได้ออกจาก The Walls ทีม ',@sign_text['2']))
                    }else{
                        # join thewalls
                        assign(@joined, get_value(concat('me.pixelart7.thewalls.joined.team.',@sign_text['2'])))
                        array_push(@joined, @event['player'])
                        store_value(concat('me.pixelart7.thewalls.joined.team.',@sign_text['2']), @joined)
                        call_proc('_set_sign_thewalls', @event['location'], @sign_text['2'])
                        msg(concat(color(a),'[TheWalls]->join',color(f),' คุณได้เข้าร่วม The Walls ทีม ',@sign_text['2'],' แล้ว!'))
                        msg(concat(color(a),'[TheWalls]->msg',color(f),' อย่าลืมเก็บของ และอย่าออกจากเกมนะครับ~'))
                    }
                }