Template Errors: public.css

1. A non-numeric value encountered in /home1/forumsmu/public_html/library/XenForo/Template/Abstract.php(265) : eval()'d code, line 1662:

   1661: 	{
   1662: 		padding-left: ' . (XenForo_Template_Helper_Core::styleProperty('content.padding-left') / 2) . 'px;
   1663: 		padding-right: ' . (XenForo_Template_Helper_Core::styleProperty('content.padding-right') / 2) . 'px;
   

2. A non-numeric value encountered in /home1/forumsmu/public_html/library/XenForo/Template/Abstract.php(265) : eval()'d code, line 1663:

   1662: 		padding-left: ' . (XenForo_Template_Helper_Core::styleProperty('content.padding-left') / 2) . 'px;
   1663: 		padding-right: ' . (XenForo_Template_Helper_Core::styleProperty('content.padding-right') / 2) . 'px;
   1664: 	}