Joomla 1.5 RC2 and VM 1.1 r912 when trying to browse shop following error is given.
QuoteFatal error: Call to a member function addItem() on a non-object in /home/domain.com/libraries/joomla/application/application.php on line 793
This is a Joomla! bug caused by recent changes JApplication (rev 8682).
I posted the problem (http://forum.joomla.org/index.php/topic,208035) to the Joomla! Q&T board.
A related problem with J! 1.5 RC2 is that URLs fail with Apache mod_rewrite turned on. So, test without that until it is fixed in J! 1.5 SVN. Otherwise, it is deceiving.
Greg
Fixed in Joomla! 1.5 SVN, rev. 8703.
Greg
nice work greg