Error when save a product

[JdKock]

When i create a product and try to save the product i got the these error messages :

Warning: Missing argument 1 for vmCustomPlugin::__construct(), called in /home/deb49752/domains/notsoordinary.nl/public_html/plugins/vmcustom/stockable/stockable.php on line 43 and defined in /home/deb49752/domains/notsoordinary.nl/public_html/administrator/components/com_virtuemart/plugins/vmcustomplugin.php on line 45

Warning: Missing argument 2 for vmCustomPlugin::__construct(), called in /home/deb49752/domains/notsoordinary.nl/public_html/plugins/vmcustom/stockable/stockable.php on line 43 and defined in /home/deb49752/domains/notsoordinary.nl/public_html/administrator/components/com_virtuemart/plugins/vmcustomplugin.php on line 45

Fatal error: Call to a member function attach() on a non-object in /home/deb49752/domains/notsoordinary.nl/public_html/libraries/joomla/base/observer.php on line 41

Somebody know what the problem is ? I just upgraded to version RC3 h.

[JdKock]

Problem solvend in the new version RC3 i.