Update: Some of the viz's have started to work.
This is my error: Refused to display "url" in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'.
My question is that this dashboard previously worked and nothing has changed.
Hi Ihudiuya, clickjack protection was turned on by default in 9.1, so this might be the cause of the problem. Here's some documentation: