[Typo3-shop] Problems with BILL and DELIVERY as Admin

[Alexander Bohndorf]

Hi there!

I would like to see the admin-page in FE on a page where I included the 
FE-Plugin tt_product with the code "BILL" oder "DELIVERY".
When I enter the admin-password, then I get the warning
"Warning: reset() [function.reset]: Passed variable is not an array or 
object in 
/usr/home/marta/public_html/typo3/ext/tt_products/pi/class.tx_ttproducts.php 
on line 2596"

In the content I only see the link to open the bill or delivery confirmation 
(same as for the default-users).
Is there anymore for the admins?

Alex