i cannot log into and play my minecraft game

URL: https://launchermeta.mojang.com/v1/packages/6d78d53da5ac7158e2f725056312edf9871dfbb1/1.13.1.json
Error details: Access is denied.
Filename on disk: 1.13.1.json
Path: C:\Users\palani\AppData\Roaming\.minecraft\assets\indexes\1.13.1.json
Exists: file