For example, every time I click on Reactive subscription, the page goes grey and nothing loads. I have tried other browsers too. 

​@Madeline Parkinson-Dalton It sounds like you created boards while on a plan that supports private boards, but then downgraded back to the Free Plan which does not support private boards.

Try this to unlock the boards:

Unlocking the board by changing the board’s Team Access

1. From the Share settings, select Manage access*:

   

2. And then change the team access from No access to Edit:

   

If you do not have the Manage access option, you can duplicate the board which will create a new version that should be editable.

Below is post where I went through these (and more) options in greater detail:

https://community.miro.com/ask-the-community-45/3-boards-limit-problem-23313?postid=82484#post82484

Hi Robert,

Thanks so much for getting back to me! Everyone is already an editor already. 

When I try to duplicate the board, I can’t duplicate it back in my own space. These are other spaces that I have previously been added to:

​@Madeline Parkinson-Dalton I have converted your post into a support ticket as the support team will have more access to see the details of what exactly has happened and the current state of your profile, subscription, teams, boards, etc. Unfortunately, I cannot provide timelines on when the support team will respond.