When I clicked on Minecraft Launcher, it updates but it doesn't open after updating. When I try to open it, it does nothing. However, I didn't modify the game files. I tried restarting, reinstalling Minecraft, updating Java, but those things never fix the problem.

These are the last lines in the log that shows the error:

[Info: 2019-11-14 10:41:55.1838436: LauncherMain.cpp(84)] Initiated launcher controller
[Info: 2019-11-14 10:41:55.1841590: LauncherMain.cpp(199)] Initialization completed
[Info: 2019-11-14 10:41:55.1847142: LauncherMain.cpp(272)] Launcher core version: 2.1.9616 (ae1caa5360c733a20205fbe2920e2640d4ffc3cf)
[Info: 2019-11-14 10:41:55.1847445: NetQueue.cpp(204)] NetQueue: Setting up.
[Info: 2019-11-14 10:41:55.1853680: SkinManager.cpp(188)] Failed to read skins file: 'C:\Users\username\AppData\Roaming\.minecraft\launcher_skins.json'