why is my apple supplied charger not working

MaryBethMcNeil wrote:

It is plugged into a Thunderbolt port. Indications are that the USB port is disabled.

Reboot?

try a different port?

try a different cable?

try a SafeBoot How to use safe mode on your Mac - Apple Support Login and test. Reboot as normal and test.

Find the right power adapter and cable for your Mac notebook ...

About Mac power adapters - Apple Support

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

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

if this is a Intel Mac—

Try resetting the SMC How to reset the SMC of your Mac - Apple Support

Try resetting NVRAM/PRAM Reset NVRAM or PRAM on your Mac - Apple Support

(get at least two-three rounds of the chimes when holding the NRAM Reset)