i have committed many codes in git desktop
but now it is not showing any contribution in my profile since 26 july!
There is only one public repository in your account, and that looks like the last contribution was 2 years ago, which isn’t going to show on your profile unless you select the year in the contribution view.
If you have contributed to private repositories (which I can’t see) and want to show those, check if you have “private contributions” activated in your contribution settings, like this:
If you have contributed to public repositories you don’t own, make sure the author email address you use is correct, and that your contributions are merged to the default branches of those repositories.