I cannot download the new 1.13 update. Every time I try, i am given a message, sorry if this is a bad report, I have never had any problems and never had to report a bug.

This is the message it gives me when i try to download
Failed to download file. af_za.json
Name: af_za.json
URL: http://resources.download.minecraft.net/ae/aec135c1b9e7eb8d46ebe2081295583b4a449ac9
Error details: UNKNOWN/-130
Filename on disk: aec135c1b9e7eb8d46ebe2081295583b4a449ac9
Path: C:/Users\lukad\AppData\Roaming\.minecraft\assets\objects\ae/aec135c1b9e7eb8d46ebe2081295583b4a449ac9
Exists: false