Lost my board

I created a board a few weeks ago, and did not share it with anyone. I wasn't working in a team, I was solo. Today, I clicked on the board, and a notification popped up, telling me I did not have permission to access that board, and I had to ask it to its owner. But I am the sole owner! Now the board is gone, and I tried everything in Miro's support page, and nothing works. I was working on the downloaded app, so I can't find a link to it. I was working on the free plan, I don't know if this explains anything, but I really need to access that board again, it has a lot of work done in there. If anyone has an idea of what may have happened, I would really appreciate it. Thank you.