I got an error when cloning others' repository, the error massage is :

I also checked ~/.ssh/config and ssh-add -l, getting the result as follows, which indicates that my access key is assigned, and it uses the same key.
However, I still cannot clone others' repository, it can only recognize my own repository. I have tried various way to solve this problem still get nothing right.
Anyone have some good idea? Thank you soooooooooooooo much.

