I ran composer update on my installation and I now have this across the top of the forum.
Deprecated: The third argument to Zend\Stratigility\MiddlewarePipe() ($out) will be required starting with Stratigility version 2; please see https://docs.zendframework.com/zend-stratigility/migration/to-v2/ for more details on how to update your application to remove this message. in /home/user/public_html/forum/vendor/zendframework/zend-stratigility/src/MiddlewarePipe.php on line 101
For anyone else having the issue , I ran the following to roll back to the previous version of zend-stratigility:
composer require zendframework/zend-stratigility 1.2.1
I know that doesn't fix the larger problem, I just wanted to note this occurred and offer a work-around.