If you're using the floor, you can use the rotation to move the backdrop. If you're using the background, well I don't how to do that.

ok

Ok so the problem is not my background, but whenever i render it it all turns blank white, without a background its just a blank white silhouette of my model.

What are you using for lights? It's possible that you have too much light which is blowing out the scene.

Ok ill see what happens when i take out a few lights

Nope it did not work the render is just blank white

Could it be the blender i have downloaded?

What version of blender? Are you using Eevee or Cycles? What does it look like if you don't have any lights on at all?

its not the blender i tried another render and it was fine

hey, i have a problem. I have an inscription: "offline" in upper right corner and i cant click on render. Maybe im dumb, but i dont know where the problem is. And im connected to internet normally. Thanks for help 😃

Scrubs has to put it offline to do stuff, dont worry, i was wondering the same thing, somone might be able to tell u more if you dont get enought info from this.