v1.15.2 docker does not start

Describe the bug

status: 500 when calling the main page.

Steps to reproduce

1. Choose "image: castopod/castopod:latest" or "image: castopod/castopod:1.15.2
2. Start up
3. Website does not load

Expected behavior

Website should load. It loads successfully when using image: castopod/castopod:1.15.1

Actual behavior

Error 500

Context

• Castopod: 1.15.2
• OS: MacOS
• Browser: Safari
• Web server: Nginx
• [any other relevant context…]

Possible fixes

[If you can, link to the line of code that might be responsible for the problem]