Maybe should be in the Shopping cart forum but this is similar to another error I posted here. When using the Add Cart Button on a pretty plan, unmodified Shopping Cart I get the following error.
[size="+2"]php error happened[/size]

[size="+1"]Technical information

[/size]Error type2

Error descriptionCannot modify header information - headers already sent by (output started at /var/www/twiztedsports/cartphp/classes/searchpanelsimple.php:278)
URLwww.twiztedsports.com/cartphp/shopinventory_list.php?item=61-04199_w

Error file/var/www/twiztedsports/cartphp/include/shopinventory_events.php

Error line67

SQL queryselect * from shopshopping_cart
Call stack
File: line Function Arguments

0. include/shopinventory_events.php:67 setcookie 1. sessionid;

1. include/shopinventory_events.php:67 BeforeShowList 1. XTempl;

2. classes/listpage.php:1079 ListPage->BeforeShowList N/A

3. classes/listpage.php:2577 ListPage->showPage N/A