@Samuel Asimiea - Thanks for the additional info. What has likely occurred here is that, when you created your Miro account, you did so via someone else inviting you to try Miro/collaborate on a board with them. And when you created your account, you were added to someone else’s team (likely a Free Plan team) as a member. Next, you created a board in their team, pushing them one board closer to their 3-editable board limit. And finally, someone deleted you from that team space, and because boards are tied to a team space and not a user profile, the board remained in that space while you were gone.
Fast forward to your signing into Miro again since you were removed from the team space and Miro sees that your account profile is not associated with any team space – a requirement in order to create any boards, i.e., to use Miro – so you were prompted to create a new team space.
Unfortunately, as you have now discovered, you have lost access to that (and any other boards) that you may have created in that team space. You will have to start from scratch and hope that the new owner of the board grants you access again, or at least sets the board’s share settings to “Anyone with the link → Can view” and sets the Content copy permissions to allow anyone with the board access to copy the board, so you can duplicate it to your new team space.
To possible speed things up, you could try searching your emails for emails form @miro.com or @notificaitons.miro.com with phrases like ‘has invited you to a team in Miro’ to see find who invited you in the first place and reach out to them to see if they are still a member of that team space and see find your board.
Best of luck!