I don't know which error this is started playing proper minecraft in the 1.12.2 update but I cant play 1.13 which is a big problem. I copied the error thing which is what is below

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\Admin\AppData\Roaming\.minecraft\assets\objects\ae/aec135c1b9e7eb8d46ebe2081295583b4a449ac9
Exists: false