This happens when your database connection isn't working when you go through the wizard. Since it can't detect your database columns and types it puts in placeholders.
The best thing to do is to test you connection to make sure it works and run the wizard again.
If you have made changes to the pages you want to keep, then save them as a backup and just copy over the store cart summary and store cart details in database code chunks from the new pages after the wizard has run.