We are evaluating Open Project for our business. I originally was testing OpenProject in the cloud with the Nextcloud integration set up to our local server. The integration worked fine.

So being that we will be on premises I installed OpenProject 12.2.2 running in enterprise evaluation mode. The OpenProject software is running fine. When I try to use the Nextcloud integration, on the Nextcloud App side, I get a message 'No OpenProject detected at the URL'. I know that the URL is correct, also the OpenProject instance is able to be pinged from Nextcloud and Nextcloud is able to be pinged from OpenProject. I added the line 'allow_local_remote_servers' => 1 to the Nextcloud config. There are no error messsages in Nextcloud. Where do I begin to troubleshoot this?