In my magento website, "Guest Checkout" is disabled. People need to register while they checkout. This works fine, as it is a default behaviour. But sometimes, people who register are not really registered, but considered as Guest.
This happens randomly. I don't have any idea what is going wrong. Can anyone help please?
note:
The website uses the default onepage checkout with minor modifications only in templates (jQuery additions for some attractive UI).
the output of running SELECT * FROM customer_group is:
running SELECT * FROM core_config_data WHERE path = 'customer/create_account/default_group' returned empty set.
SELECT * FROM customer_group
andSELECT * FROM core_config_data WHERE path = 'customer/create_account/default_group'