Catch exeption from database insert

It works.  Thank you.

I'm still not used to the new* Trowable hierarchy.  I still think the base class is Exception.
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* I know it's not new-new.

Throwable is more general than Exception in PHP. It has been around since PHP 7, so it is not new.

Throwable is the base interface for any object that can be thrown via a throw statement, including Error and Exception.

from https://www.php.net/manual/en/class.throwable.php