We develpoped a site on our development server using DNN 5.6.2. We installed the Smith Registration Pro module 4.22 which worked great. It processed the transactions through QB Merchant Services in test mode. We then moved the site to the production server. By this time, the trial license had expired so the client purchased a license and, at the request of the client, we installed Smith Registration Pro 4.25. There were some issues with the license, but those were resolved, but now it appears that none of our products (subscriptions) exist anymore. The rest of the site transferred beautifully, no issues. But when I try to add a product, I get 'A critical error has occurred. Object reference not set to an instance of an object.' I looked at the tables on our development server and can't find anything that looks like a products table, so I can't compare the develoment and production databases. Any help in resolving this issue would be appreciated.