no category field available on product creation / edit

[joaoserra69]

when I enter a product to edit it or if I want to create a new one, I cannot save because there is no longer a category field, and so it says that the category field must be filled.

[Benno]

Hi,
which Joomla! version do you use?
which Phoca Cart Component version?
which PHP version?

Kind regards,
Benno