rails sできない！

前提

1.ファイルを元に戻そうとSHIFT＋CTRL＋zを押すと間違えてコマンドのほうで押されてしまいサーバーが落ちました。

2.調べてtmp/pids/にある番号だけのファイルを削除してrails sを実行したところ
再度エラーが発生しました

発生している問題・エラーメッセージ

=> Booting Puma
=> Rails 6.1.7 application starting in development 
=> Run `bin/rails server --help` for more startup options
Puma starting in single mode...
* Puma version: 5.6.5 (ruby 3.0.0-p0) ("Birdie's Version")
*  Min threads: 5
*  Max threads: 5
*  Environment: development
*          PID: 6762
Exiting
/home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:341:in `initialize': Address already in use - bind(2) for "127.0.0.1" port 8080 (Errno::EADDRINUSE)
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:341:in `new'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:341:in `add_tcp_listener'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:335:in `block in add_tcp_listener'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:334:in `each'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:334:in `add_tcp_listener'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:173:in `block in parse'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:156:in `each'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/binder.rb:156:in `parse'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/runner.rb:156:in `load_and_bind'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/single.rb:44:in `run'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/puma/launcher.rb:193:in `run'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/puma-5.6.5/lib/rack/handler/puma.rb:72:in `run'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/rack-2.2.4/lib/rack/server.rb:327:in `start'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/railties-6.1.7/lib/rails/commands/server/server_command.rb:39:in `start'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/railties-6.1.7/lib/rails/commands/server/server_command.rb:144:in `block in perform'
        from <internal:kernel>:90:in `tap'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/railties-6.1.7/lib/rails/commands/server/server_command.rb:135:in `perform'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/railties-6.1.7/lib/rails/command/base.rb:69:in `perform'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/railties-6.1.7/lib/rails/command.rb:48:in `invoke'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/railties-6.1.7/lib/rails/commands.rb:18:in `<main>'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
        from /home/ubuntu/environment/tsunageru/bin/rails:5:in `<top (required)>'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/spring-4.1.0/lib/spring/client/rails.rb:28:in `load'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/spring-4.1.0/lib/spring/client/rails.rb:28:in `call'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/spring-4.1.0/lib/spring/client/command.rb:7:in `call'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/spring-4.1.0/lib/spring/client.rb:30:in `run'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/spring-4.1.0/bin/spring:49:in `<top (required)>'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/spring-4.1.0/lib/spring/binstub.rb:11:in `load'
        from /home/ubuntu/.rvm/gems/ruby-3.0.0/gems/spring-4.1.0/lib/spring/binstub.rb:11:in `<top (required)>'
        from <internal:/home/ubuntu/.rvm/rubies/ruby-3.0.0/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
        from <internal:/home/ubuntu/.rvm/rubies/ruby-3.0.0/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
        from /home/ubuntu/environment/tsunageru/bin/spring:10:in `block in <top (required)>'
        from <internal:kernel>:90:in `tap'
        from /home/ubuntu/environment/tsunageru/bin/spring:7:in `<top (required)>'
        from bin/rails:2:in `load'
        from bin/rails:2:in `<main>'