[TYPO3-shop] tt_products 2.7.0 JS-Error

[Niels Tiedt]

Hi List
I don?t know that i have changed something but now i become following 
Error* when i switch e.g. the color
in the single view.
The color has a different Price.
When I order the Product with the selected Color the right Price appears 
in the basket.
*v[table] has no properties
doFetchRow("tt_products", "single", 228)index.php (line 137)
onchange(change )index.php (line 1)
[Break on this error] var field = v[table][k];

You can see this at http://www.seite-pruefen.de/index.php?id=72
Product "atest"

For test purposes i have checked the templates and the config but 
nothing found/changed


Please help
THX
Niels Tiedt