API Playground lost all my GRaphQL queries

I had tons of GraphQL queries and mutations in 2 tabs in my API Playground. Yesterday, the interface showed me only one screen, without tab names on top of it. I tried to retrieve the tabs, doing a lot of stuff and couldn’t. In one of the attempts, I created a new tab (then Monday showed the “untitled” tab name), but then I LOST ALL MY PREVIOUS QUERIES.

I’d like to know if there is a way to recover that, because there will be a lot of time to recreate the queries.