Deployment problems in railway using Content Type-Builder

Hello everyone, I hope you are well!

I tried to deploy a Strapi project in Railway for testing but when I want to enter the /admin path I get a “Warning: An error occurred while requesting the API”.

The only configuration I did was to put the command “strapi develop” in the railway start command to allow me to use the Content Type-Builder.

If anyone knows why this error occurs and how to fix it I would be very grateful!