I cannot launch minecraft

Failed to download file.
Name: af_za.json
URL: https://resources.download.minecraft.net/64/64b30ead23fbc30751af700e7bad99a22a8100f3
Error details: Operation timed out after 300109 milliseconds with 0 out of 0 bytes received
Filename on disk: 64b30ead23fbc30751af700e7bad99a22a8100f3
Path: C:\Users\doudou\AppData\Roaming\.minecraft\assets\objects\64\64b30ead23fbc30751af700e7bad99a22a8100f3
Exists: Nonexistent