configuration

[emilyHere6]

When using the Docker installation, and after executing the docker compose up command the error I get is
"onetime-app | /app/lib/onetime/core_ext.rb:30: warning: constant ::Fixnum is deprecated
onetime-app | /usr/local/bundle/gems/attic-0.5.3/lib/attic.rb:13: warning: constant ::Fixnum is deprecated
onetime-app | /usr/local/bundle/gems/gibbler-0.8.9/lib/gibbler.rb:654: warning: constant ::Fixnum is deprecated
onetime-app | /usr/local/bundle/gems/gibbler-0.8.9/lib/gibbler.rb:655: warning: constant ::Bignum is deprecated
onetime-app | bundler: failed to load command: thin (/usr/local/bundle/bin/thin)
onetime-app | bundler: failed to load command: bundle (/usr/local/bundle/bin/bundle)"
Then it exits with a code of 1 after trying a few more things. Has anyone else had this issue? I wonder if it is the configuration because that part really is confusing me. Is there a step by step guide for the config?