We have a problem with our Magento CE 18.104.22.168 Shop before going live, We do not exactly know when did this one happen. We want to offer digital goods (pictures) as download links from an external host.
Everything worked fine - we did not test the checkout for a month.
Now we have a problem, if a customer buys a digital good, his download link for his picture does not work. It is empty. The hash key in the DB seems ok. In Backend, the purchase was triggered. We suppose the connection between the hash key and the external URL is wrong.
We did 2 things since that but already applied a rollback. We installed SSL certificate and a delete old orders extension.
Can one of these things cause our problem?