Corel Painter 2021 crashed and now will not run

Have been using Painter 2021 successfully for the past few months.

This week I decided ro get serious and made my custom collection of brushes that fit my style. Was a happy camper.

This morning it crashed and would not restart. The 2021 lady (with the sunglasses) comes up then boom, back to the desktop.

I check Task manager, and Painter is not running.

I reboot, and the same issue prevails. I cannot get painter to open up to be able to work on an image

Do I have to reinstall Painter 2021 again?