On-premise HTTP 500 message

I installed Akaunting on my hosting cloud using Cpanel/softaculous. after logging in to the system I've updated the KEY. A few minutes later, access to the system was blocked with an HTTP 500 message.

Have you ever sorted out this issue? I am also getting 500s when I want to access details of a customer or transaction. I am having this on all the recent 3.1 versions and I am running the official docker.

Same Error @Viktor Viktor...

My problem was that the database migration was not working. See more at https://github.com/akaunting/docker/issues/100