Camera Actor spawns on play

it’s my first post here. I am working on a little mobile game and I got a question.

When I click the “play” button, UE spawns a camera actor where I am in the Editor View. It also spawns a sphere there. (screenshot)
Could somebody help me out here? I just want to delete the camera actor or make the sphere invisible or something …

Lookin forward to hear from you!

Best regards,