Why does my USB-C charger not work anymore?

Click on the link and read what to do "If your iPhone, iPad, or iPod touch won't charge" --> https://support.apple.com/HT201569

James Germany wrote:

What happend? And why does my charger not work anymore?

[Re-Titled by Moderator]

You do not paint a very big picture here...(?)

If your USB-C power adapter isn't charging your Mac notebook

https://support.apple.com/en-us/HT204652