Downgrade from high sierra to sierra

Hey,

I was trying to downgrade my macbook pro (early 2011) from high sierra back to sierra. I downloaded sierra and i made an usb installation disk. Then i deleted high sierra from my mac and when i was trying to install sierra i got an error.

The error is this one:

the operation couldn\U2019t be completed. (com.apple.PackageKit.PKFileDownload error 5.)

Is there someone who had the same problem and who can help me with this?

Thanks 🙂