My iPhone 11 has stopped charging wirelessly now !!!!!!!!

Reboot your iPhone. The process suggested above is close, but not correct.

Press and quickly release volume up button

Then press and quickly release volume down button

Then press and keep holding power button (keep holding past swipe to power off) until you see the Apple Logo, then let go

Once back in your iPhone, see if you can charge wirelessly.

Apparently, if your phones case back is metallic, this will affect the charging. It also appears that the GPU is metal optimised which could also interfere with the charging process.

Another thing to consider is: is your charger QI certified? The shell is made from low carbon aluminium.

One remedy suggested is to press either of the 2 volume buttons and the power button together.

It is possible that there may be something in Settings that could prevent wireless charging. I couldn't find any solutions to that situation, even from Apple.

THANKS!!! I followed your instructions and...VOILA! Qi charging function. Much appreciated.

Glad it helped you!