Err messsage with hack

OK so when i go to launch my hack and click ok to run it on it takes me to this website is it spouse to do that? than i go to start game and it gives me a err message when i click on start game (MCAHUB Error could not inject dll) and closes the game..And when the hell do you see this text in the botom right corner it keeps talking about in the instructions that lets you know your hack is working?
And it always gives me a threat detected message i just hit ignore is that also spouse

Yes its normal for another window open. It should be mpgh site. When it does open, don't close! Make sure you are logged in. After you log in the game shoud redirect itself. Meaning you should just leave everything the way it is. If you are already logged in, let the window come up and just wait. It will go back to the game itself, and you can log in