I Need Some Help

Hello, 

I need some help for this error issue I've been having for two months already. I had another bug so someone told me to uninstall and reinstall Minecraft but ever since its been giving me a error issue. Here's the error

Failed to download file.
Name: scn.json
URL: https://resources.download.minecraft.net/5c/5c835bafec0f4c0c8cbe328928e1cf3ebfbe32cf
Error details: Send failure: Connection was reset
Filename on disk: 5c835bafec0f4c0c8cbe328928e1cf3ebfbe32cf
Path: C:\Users\chief\AppData\Roaming\.minecraft\assets\objects\5c\5c835bafec0f4c0c8cbe328928e1cf3ebfbe32cf
Exists: File

 I tried to look for some help on this site but every one else's problems are different for mine. Need desperate help, Thanks