This occurs when you have a computer with a Touch-enabled screen and are typing with the keyboard (instead of typing directly on the touch screen). To stop this message simply toggle the Touch mode of your computer to OFF by clicking the hand/pointing-finger icon at the top of the file (see this screenshot for help).
Hi, I'm Simone. Designer and owner of SIMONEmadeit & mother of 2. I love designing party printables for kids and I can be most often found drinking coffee in front of my computer (or binge watching Elementary on Netflix).