I'm sure that you hoped for fresher paper, but don't despair. Unless you only burn a few sheets a month, your paper won't truly be "old." If it came from the Agfa supplier and goes into your darkroom paper drawer, it will be good for 5 years anyway. I just threw out some 15 year old Ilford paper. I have a whole library of papers, some of them well past the theoretical expiration date.
I think you will have good success with this paper regardless of the age printed on the outside of the package.