The installation instructions provided for this plugin are inadequate. Does this plugin even work anymore?

Error while checking ranks: Unknown error (2019-12-14 17:56:43)
why do i have this error
help me to solve

Hi, for every search I get position 1. Am I doing something wrong?

I can not add keys. Import from Yoast also does not work.

Hi Sir
Your program is very nice and I like
I have problem i can make to check is show me Error while checking ranks: Unknown error
I have the correct api and cx
What to do to start to make check

Thank you
Giorgos