Had a message from this number, replied back and my phone shut down all apps and went into safe mode. Once I deleted the message and restarted phone twice it was back to normal. Can anyone explain why this would happen

Looking to find Adam Hughes. Address to serve court documents . This guy is a liar and has taken money from myself and others in the past . It's now my job to warn others as I borrowed money to this person to pay for his grandmothers funeral . I'm starting to believe now his grandmother is still alive and it was all just a con