I cannot publish my code on Github repo with Visual Studio

Hello everyone, i'm dealing with an unexpected problem i.e., when i try to publish my code on GitHub Repository it's not creating the repository correctly. And when i try to sync my Visual Studio project with GitHub it's not synchronizing correctly. After creating the repo when i try to open my repoit is showing some 404 error message. And by accidently i have edited the GitHub repo path. And when i try to delete the repo which is generated incorrectly it's not deleting. I have tried by reinstalling the GitHub and the problem is still continuing. Please help me with getting out of this problem. Thank you.