Why when I click play, I cant move my first person character, instead it uses another camera(sphere)

Hi, i need big help, I have added the camera into the level blueprint and this is the camera of my character but when i click play, instead a sphere with no texture appears and i can move it about everywhere and i can feel that it has a camera when i move the mouse, it rotates. One more thing the camera is correct, but instead of using movements on my character it does it on the sphere. Im a beginner, any help would be appreciated!