Lizard Cart CMS

when using the lizardcart-admin to add a product or
page you can choose for using HTML or a WYSIWYG
editor, when using the editor there is also an option to
insert a picture, that works fine. But when I want to
save my page I receive an error like "Could not add
page", just adding simple text to a page works fine but
when you want to add a pic it hangs.

PS
working with a HTML <img tag outside the editor works
fine but when opening the page WYSIWYG it won't work
either.