Can't push

[ShellCodingGH]

Hi, I tried to push but I got this error message "fatal: could not read Username for 'https://github.com': Device not configured". I followed this link But I didn't do brew install git git-lfs on my terminal, because it always says -bash: brew: command not found How can I push successfully?

Thanks for reading this message.

Expected behavior: Github for Unity can push successfully, and changes can be seen in the github website repository

Actual behavior: