I have made the necessary changes looking forward to contributing.Can you provide me the necessary information as this repo doesn't has a contribution.md file so I dont know how to contribute
To push changes to the Wikimedia Gerrit system, you need to use git review, as described here: https://www.mediawiki.org/wiki/Gerrit/git-review. If you did that already, the error might be an incomplete clone. Usually, cloning should be done via SSH. The address can be found here: https://gerrit.wikimedia.org/r/#/admin/projects/mediawiki/extensions/AdvancedSearch.