Hello Maryamsh,
" ... one many are facing right now in the world."
I think that this is only part of a sentence.
It looks as if it might be part of something like this.
"Lots of people are facing financial difficulties. They have the problem of insufficient food."
"It is one, many are facing right now."
= "It is one problem, (insufficient food), that many people have, at this moment, in every country of the world."
I hope that this helps you.
Les Douglas