Plutonium

One error I have is "Could not authenticate to Plutonium: non-success stats code: 401.
I also have another error that occurs when I select "play" and the game begins to open, and detects some sort of error, I've tried relogging onto my account, even tried to reinstall Plutonium T6, nothing fixes the error, the game opened successfully one time but closed randomly a minute after without any error warning or anything, just closed and would not tell me why.