Website disappear from some countries' SERP

Hi guys,



I made a few PBN homepage links to my website a few days ago, but since today its daily traffic has dropped by almost half.

I don't know if this is a problem caused by PBN. Because there are good and bad things. The bad is that, as the title says, my website disappear from some countries' SERP, and the good thing is that it ranking from fourth to first in the SERPs of some countries.

I don't know what to do. Have you ever encountered something like this?

Please help me and tell me if I should delete the PBN link. Thanks!

There was a update on 13thn Jan it could have caused it

I think you should delete that PBN links and wait.