"To get into hot water" is an expression meaning to be in trouble or to have problems.
How It's Used
“Meanwhile a German official advocating the Schloss got in hot water recently by suggesting that the forum would include studios open to the public for artists from Africa, Asia and other exotic places, bringing to mind the old Hottentot and freak show displays. The official later insisted this wasn’t what he meant.”
"Courtney Love got into hot water earlier this year after she tweeted nasty comments about a fashion designer who then sued her. Dallas Mavericks owner Mark Cuban had to pay $25,000 to the NBA after he questioned a referee's call on Twitter in March."