how to repair the OneCore voices?

Mert Anlar

hi folks;

a few days ago i've installed english language pack, and the OneCore
voices were working perfectly until today, but now can't use them anymore.

only my own language's voice is working, but others not.

note: I don't get any error. when I choose them on the NVDA, Narrator,
e.g. they don't work.

how can I repair them, have any of you faced this issue?