Unless, as commented, you are in the wrong repository locally, another cause would be to have created and committed in a new master branch, which differs completely from the upstream one.
This could be related to your issue from two days ago, where you deleted the remote repo, created another, and pushed again.
There are several ways to overcome this issue, the safest being:
- clone the remote repository in a separate folder
- compare your local repository with what you have clone in order to re-import any work in progress or past commits you might have in your original local repository.
For example, to check the difference between what you have locally and the remote repository you want to fetch for:
git clone https://github.com/predator2v0/simple-Javascript-calculator /new/path/simple-Javascript-calculator
cd /new/path/simple-Javascript-calculator
git --work-tree=/old/path/to/simple-Javascript-calculator status
That way, you can see if you have any local files (from /old/path/to/simple-Javascript-calculator
, you original local repository) with any changes compared to what you have cloned (in /new/path/simple-Javascript-calculator
)