I am unable to switch between my trello boards

ProRed TVL

I have 4 trello boards that i work between daily and for a few days now i have not been able to switch between either of the, 

I have tried logging out and it still gives an error, it wont even let me log out

 

Nikola Perisic

Welcome @ProRed TVL 

• You have clicked on Switch boards option of the new UI?
• Have you tried incognito mode?
• When the error occurs, in your development console, what error do you see?