EDITOR=vim bin/rails credentials:editできない

現在世界一丁寧なAWS解説。EC2を利用して、RailsアプリをAWSにあげるまでを参考にAWSを勉強しています。

実現したいこと

サーバー環境でEDITOR=vim bin/rails credentials:editを実行して新たにmaster.keyとcredentials.yml.encを作成したいです。

発生している問題・エラーメッセージ

サーバー環境でEDITOR=vim bin/rails credentials:editをすると

`key=': key must be 16 bytes (ArgumentError)

全体のerror文

Traceback (most recent call last):
	35: from bin/rails:3:in `<main>'
	34: from bin/rails:3:in `load'
	33: from /var/www/rails/ToDoGame/backend/bin/spring:15:in `<top (required)>'
	32: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require'
	31: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require'
	30: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `<top (required)>'
	29: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `load'
	28: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.0/bin/spring:49:in `<top (required)>'
	27: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.0/lib/spring/client.rb:30:in `run'
	26: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.0/lib/spring/client/command.rb:7:in `call'
	25: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `call'
	24: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `load'
	23: from /var/www/rails/ToDoGame/backend/bin/rails:9:in `<top (required)>'
	22: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/dependencies.rb:324:in `require'
	21: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/dependencies.rb:291:in `load_dependency'
	20: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/dependencies.rb:324:in `block in require'
	19: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
	18: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
	17: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
	16: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
	15: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.7/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
	14: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.2/lib/rails/commands.rb:18:in `<main>'
	13: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.2/lib/rails/command.rb:46:in `invoke'
	12: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.2/lib/rails/command/base.rb:69:in `perform'
	11: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
	10: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
	 9: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
	 8: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.2/lib/rails/commands/credentials/credentials_command.rb:30:in `edit'
	 7: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.2/lib/rails/commands/credentials/credentials_command.rb:62:in `ensure_credentials_have_been_added'
	 6: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.2/lib/rails/generators/rails/credentials/credentials_generator.rb:30:in `add_credentials_file_silently'
	 5: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/encrypted_configuration.rb:29:in `write'
	 4: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/encrypted_file.rb:50:in `write'
	 3: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/encrypted_file.rb:76:in `encrypt'
	 2: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/message_encryptor.rb:151:in `encrypt_and_sign'
	 1: from /home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/message_encryptor.rb:169:in `_encrypt'
/home/kazuki/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.2/lib/active_support/message_encryptor.rb:169:in `key=': key must be 16 bytes (ArgumentError)

が表示されます。

試したこと

ローカル環境では、rails cでRails.application.credentials.secret_key_baseを確認しても何も問題なく表示されるので、ローカルのmaster.keyとcredentials.yml.encをコピーしてサーバー環境でvi config/master.keyとvi config/credentials.yml.encで作成したところにローカルのものを貼り付けても

ActiveSupport::MessageEncryptor::InvalidMessage (ActiveSupport::MessageEncryptor::InvalidMessage)

のエラーが出ます。

サーバー環境でだけEDITOR=vim bin/rails credentials:editを実行したときに`key=': key must be 16 bytes (ArgumentError)が表示されるので、、、。何か設定を壊してしまっているのか心配です。解決策をご存知の方は是非教えていただきたいです、、、m(_ _)m