Redmine

I have tried upgrading Redmine 3.3 to Redmine 6.1 on Docker compose. Still, the container kept restarting and I found the logs as follows.

=> Booting Puma
=> Rails 7.2.3 application starting in production
=> Run `bin/rails server --help` for more startup options
Your Redmine configuration file located at /usr/src/redmine/config/configuration.yml is not a valid Redmine configuration file.
Exiting
Your Gemfile lists the gem puma (>= 0) more than once.
You should probably keep only one of them.
Remove any duplicate entries and specify the gem only once.
While it's not a problem now, it could cause errors if you change the version of one of them later.
The Gemfile's dependencies are satisfied

How do I solve the problem?