Any first timers get nervous?

I’m glad I went out to clean my sister’s house today for a little more practice. I just finished soaking the top vynal part of the house and switched to a 40 degree pressure nozzle to hit the bricks thats at the bottom. All the sudden lost pressure and no water was coming out. I went back to the machine and cut it off. Disconnected my gun from the ball valve and found this lodged in there


My pressure hhose is brand new I ditched that crappy Simpson hose and bought non mark grey hose from envirospec