Hi pranali,
I'm Paul, I'm sorry to hear you're having a problem.
Don't worry, I will help you to solve it.
I recommend that you reinstall the OneDrive.
You can also use System File Checker to check and fix corrupted system files that may be the cause of the issue. Please refer to the link.
https://support.microsoft.com/en-us/help/402652...
I hope this helps. Feel free to ask back any questions and keep me posted.