What's casuing these SSH errors in the pm2 logs?

[E3V3A]

I’m getting my logs spammed by the following SSH errors, in my PM2 logs:

ssh_askpass: exec(/usr/bin/ssh-askpass): No such file or directory
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Any idea what module is causing this?

I do have the notification module, constantly reminding me that one of my modules has X “commits behind master branch.”

Are these related? How?