I am getting following error in front end.


( ! ) Notice: Undefined property: stdClass::$num in
C:\wamp\www\mysite\tmp\templates_c\Quizzard^8bd8ef50dd4c5590a2cc13a411ad7c837ed72d71.module_db_tpl.Quizzard;quiz_template.php
on line 69
Call Stack
#	Time	Memory	Function	Location
1	0.0019	364520	{main}( )	..\index.php:0
2	0.2391	11256200	Smarty_CMS->fetch( )	..\index.php:240
3	0.2392	11257640	Smarty_Internal_TemplateBase->fetch( )
..\class.Smarty_CMS.php:326
4	0.2402	11335600	content_538758d591aab9_82974551( )
..\smarty_internal_templatebase.php:182
5	0.3154	15872832	CMS_Content_Block::smarty_internal_fetch_contentblock( )
..\f86d86ab39c1bb93a1b057df0c3d0155eccd402c.tpl_body.22.php:146
6	0.3155	15874792	Smarty_CMS->fetch( )	..\class.CMS_Content_Block.php:327
7	0.3155	15876312	Smarty_Internal_TemplateBase->fetch( )
..\class.Smarty_CMS.php:326
8	0.3163	15909296	content_53875155a6b861_12082096( )
..\smarty_internal_templatebase.php:182
9	0.3165	15912904	smarty_function_cms_module( )
..\15content_en^62e936251e4799749e89fa9828a0ee7332eb5816.content.content_en.php:23
10	0.3165	15912936	cms_module_plugin( )	..\function.cms_module.php:21
11	0.3167	15932088	CMSModule->DoActionBase( )	..\module.functions.php:123
12	0.3171	15933496	CMSModule->DoAction( )	..\class.CMSModule.php:1795
13	0.3177	15974336	include(
'C:\wamp\www\mysite\modules\Quizzard\action.takequiz.php' )
..\class.CMSModule.php:1727
14	0.3390	16038664	CMSModule->ProcessTemplateFromDatabase( )
..\action.takequiz.php:126
15	0.3390	16038880	cms_module_ProcessTemplateFromDatabase( )
..\class.CMSModule.php:2954
16	0.3390	16039144	Smarty_CMS->fetch( )	..\modtemplates.inc.php:239
17	0.3391	16040696	Smarty_Internal_TemplateBase->fetch( )
..\class.Smarty_CMS.php:326
18	0.3405	16107456	content_53875155b41454_58719747( )
..\smarty_internal_templatebase.php:182