Hello there bertha0716,
From what we can tell, the Apple logo is flashing on the screen of your iPhone 11 Pro, and a forced restart doesn't seem to be working. We're glad you've joined us in Apple Support Communities, and we can provide some guidance.
To begin, you'll want to be sure you followed the correct steps to force restart your iPhone, making sure to hold the Side button until you see the Apple logo onscreen:
Force restart iPhone
If that doesn't seem to help, you'll want to try starting up in recovery mode and following the steps in the 'If your iPhone turns on but gets stuck during start up' section of this support article:
If your iPhone won't turn on or is frozen
We hope this provides some clarity on what you'll need to do next. Don’t hesitate to let us know if you have any more questions.
Take care.