Need help for our project....

Good day! I am having some issues with my 16x2 lcd display and mg995 servomotor, everytime I plug in the servomotor into a PWM pin, the lcd display begins to become erratic eventually even if I reset the arduino mega 2560, still it is behaving badly. Note that the servomotor has its own power supply while the LCD monitor also has its own. what could be the problem? Thank you for answering!!! :slight_smile: