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Error image backgrounds Webflow - altitudecarriere

hello community! since yesterday, I have not been able to integrate my professional image at the back. When I insert the photo, I have two problems. the first is that the image multiplies on all the pages of the site. secondly, there is an animation with the old image which is done when I click on the link: who am I
Thank you for your help

https://preview.webflow.com/preview/altitudecarriere?utm_medium=preview_link&utm_source=designer&utm_content=altitudecarriere&preview=e35c9caf593d3b78769b9d73f44bf2dd&pageId=5f84b7e1d25b054cbb0cd9cf&mode=preview