Related article: https://zerowp.com/change-the-eol-between-crlf-lf-and-cr/

It may happen due to incorrect format. I had also recently a problem with the key.…

thanks, but there's some error for openssh key. this article helped me. https://discuss.circleci.com/t/adding-ssh-keys-fails/7747

You're welcome. :)

thank you so much it took to much time to find it

Saved as a favorite!, I love your web site!