Another Tab Is Already Working On This

Good Morning,

I am using the Upfront editor for my website and am having some weird functionality right now. First, when I log in I get a error message at the top of the screen that states "Another Tab Is Already Working On This". Additionally, when I try to go to the Network Dashboard from the site it doesn't take me there.. instead, it shows me a picture full screen. I am wondering if I have a bug of some sort, but do not know how to assess it.