We're currently experiencing an issue that you may be affected by in two ways:
If you create a new campaign,it may be created without the default "Playing Cards" deck.
If you try to copy/extend a campaign, it may fail to create a copy and instead give you a blank campaign.
This is an issue with the Firebase REST API which we are working to resolve with them. This seems to have started happening around 10 PM last night. If you created a campaign and need the card deck added, we should be able to add it for you manually once this issue is resolved.