Solution :
To find the folder named AppData please uncover the files hidden on your home PC as for default it is hidden.
After doing that please try to delet the file "web data" from below path :
C:/Users/Username/AppData/Local/Google/Chrome/UserData/Default
And if it is still not working then also delete "Local State" File from below path:
C:/Users/Username/AppData/Local/Google/Chrome/UserData
Hope it resolves your issue.