Hi - Please check your Archives and Check to see if you have a search filter set. In my use of Trello I noticed cards are not Deleted without a 'double clutch'. Typically they are archived first.
Try using the Search and looking for a keyword in the card or a label that may have been on it.
Best of luck
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events