Which country is not accepted by Pakistan?

Pakistan is the only country in the world that does not recognize Armenia as a state, although most Pakistani people are not aware of this fact. The primary cause of the two countries’ diplomatic rift is the Nagorno-Karabakh conflict.

https://en.wikipedia.org/wiki/Armenia%E2%80%93Pakistan_relations#:~:text=Pakistan%20is%20the%20only%20country,is%20the%20Nagorno%2DKarabakh%20conflict.