@creator uno - To start, when you log into your Miro dashboard, how many teams do you have on the left-hand vertical bar? Perhaps your Miro account profile is a member of multiple teams and you just need to click on one of those teams. For example:

Can you find the broad in your browser history? If Chrome, Ctrl/Cmd + H should open the browser history and you could search for ‘miro.com/app/board’. If you find and can open the board, do so and then click on the board title to open the Board details popup where you should be able to see which team the board is located in, who is the owner, etc. For  example:

@creator uno - A few other things to try:

Help , where are my board ! /:=> Oops I've filtered them | Miro