I recently had a lot of these errors. Is ChatGPT browsing mode still recovering from its down time? I am on brave with my shields off and no VPN on or any kind of proxy.
You live in the Supported Countries?
I am getting these errors on almost any query I run with the Browse with Bing plugin: it takes a long time to search and parse whatever it is searching, starts writing the answer, and then turns the whole text red and spits out the notorious “Error in message stream” notification.
I found no relation to VPN/configuration/other settings.