Setting briefkasten up (with another port)

[BLACK4585]

Hey,
I just came across this project and wanted to try it out. So I cloned the repo on my server, renamed the .env.example to .env. Then I changed the DATABASE_URL to postgres://bkAdmin:briefkasten@postgres:5432/briefkasten?sslmode=disable and added a NEXTAUTH_SECRET by running openssl rand -hex 32. In the docker-compose.yml file I changed line 23 to - 5000:3000 to open the webinterface on port 5000 since I have another service running on port 3000.
Have I done everything right so far?
Then I opened <IP>:5000 in my browser, got redirected to <IP>:5000/auth/signin, got a 500 Error and this is written in the bk-app container's console:

TypeError: Cannot convert undefined or null to object

    at Function.keys (<anonymous>)

    at Signin (/app/.next/server/pages/auth/signin.js:114:43)

    at Wc (/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.production.min.js:68:44)

    at Zc (/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.production.min.js:70:253)

    at Z (/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.production.min.js:76:89)

    at $c (/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.production.min.js:78:98)

    at bd (/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.production.min.js:77:404)

    at Z (/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.production.min.js:76:217)

    at Zc (/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.production.min.js:74:209)

    at Z (/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.production.min.js:76:89)

Is this now an error by my configuration?

Thank you very much in advance!

[ndom91]

I believe this is because you didn't setup any of the NextAuth providers (like google or github login). The latest version of Briefkasten warns about this when launching 👍

Generally all your other changes / steps sound good though