Hello Swihail,
why are you deleting the `layer=*` here? They seem to be perfectly right. Additionally, I wonder how you can add a `level=*` from aerial images.
There seems to be a problem in understanding the task and/or within the instructions, see https://community.openstreetmap.org/t/102994/4 and follow-ups (which is about Germany but also valid here).
I kindly ask you to stop working on "Fixed building and highway intersection" for now and talk to your instructor plus, please, review all your previous changes regarding the task (as this one is only an example) and fix or revert them prior to continuing.
Thanks and regards,
skyper