There was a small problem with the 4th lab work. I left only HTTP in the simulation filter. After that I went to the web-client, opened the Desktop tab and went to the web-browser tab, where I entered the address of the site. Well, then I popped up this error! I do not know how to fix it, at the same time, when the filter leave all the checkboxes all is sent and works as it should ! Can you help with this problem, since I am a beginner and just learning. And it is related to the lab, and it needs to finish and send by Wednesday.