[TGurlik]

My team has just switched over to Java from C++ this year, so I'm a little unsure of myself, but I think I know what your issue is. Using whileActive to toggle your solenoid will result in the toggleSolenoid() function running repeatedly as long as the button is held (assuming I'm understanding this right). If there's a function you can use that will only run once when the button is pressed instead of whileActive, that would be best. Otherwise, you can look into using a timer to run the function at most once every half second or so, which would keep it from freaking out.