Why can't tar archive be unpacked?

Question

linux

Hello. Why can't the archive be unpacked? I see that for some reason tar could not find the /home/u34/web/sinister.co.uk folder in the archive, but it is there.
And why does tar in the archive look for the file /backup/u34/11-08-2017.tar.gz , because this is the path to the archive being unpacked?

[email protected]:/# tar -xvf --acls /backup/u34/11-08-2017.tar.gz /home/u34/web/sinister.co.uk -C /home/u34/web/sinister.co.uk
tar: /backup/u34/11-08-2017.tar.gz: Not found in archive
tar: /home/u34/web/sinister.co.uk: Not found in archive
tar: Exiting with failure status due to previous errors

Answer 1

-xvf --acls
the next option after -f is read as a file, but the file "--acls" does not exist in the directory.
write
--acls -xvf

Answer 2

Because the -f switch requires a filename and everything after that tar treats as a filename