rails db:migrateをするとエラーが起きる

rails db:migrateをやるとエラーになってしまいます。
原因を教えてください。よろしくお願いします。

こちらエラー内容です

== 20190524093717 CreatePapers: migrating =====================================
-- create_table(:papers)
rails aborted!
StandardError: An error has occurred, this and all later migrations canceled:

undefined method intger' for #<ActiveRecord::ConnectionAdapters::SQLite3::TableDefinition:0x00007f9a04f73fa0> Did you mean? integer Integer /Users/idaryuunosuke/Documents/Ruby on Rails/ronbun/db/migrate/20190524093717_create_papers.rb:4:in block in change'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/schema_statements.rb:282:in create_table' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:849:in block in method_missing'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:818:in block in say_with_time' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:818:in say_with_time'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:838:in method_missing' /Users/idaryuunosuke/Documents/Ruby on Rails/ronbun/db/migrate/20190524093717_create_papers.rb:3:in change'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:792:in exec_migration' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:776:in block (2 levels) in migrate'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:775:in block in migrate' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in with_connection'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:774:in migrate' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:953:in migrate'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1230:in block in execute_migration_in_transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1298:in block in ddl_transaction'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/database_statements.rb:235:in block in transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/transaction.rb:194:in block in within_new_transaction'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/transaction.rb:191:in within_new_transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/database_statements.rb:235:in transaction'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/transactions.rb:210:in transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1298:in ddl_transaction'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1229:in execute_migration_in_transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1201:in block in migrate_without_lock'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1200:in each' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1200:in migrate_without_lock'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1150:in migrate' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1007:in up'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:985:in migrate' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/tasks/database_tasks.rb:171:in migrate'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/railties/databases.rake:58:in block (2 levels) in <top (required)>' /Library/Ruby/Gems/2.3.0/gems/railties-5.1.7/lib/rails/commands/rake/rake_command.rb:21:in block in perform'
/Library/Ruby/Gems/2.3.0/gems/railties-5.1.7/lib/rails/commands/rake/rake_command.rb:18:in perform' /Library/Ruby/Gems/2.3.0/gems/railties-5.1.7/lib/rails/command.rb:46:in invoke'
/Library/Ruby/Gems/2.3.0/gems/railties-5.1.7/lib/rails/commands.rb:16:in <top (required)>' /Users/idaryuunosuke/Documents/Ruby on Rails/ronbun/bin/rails:9:in require'
/Users/idaryuunosuke/Documents/Ruby on Rails/ronbun/bin/rails:9:in <top (required)>' /Library/Ruby/Gems/2.3.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in load'
/Library/Ruby/Gems/2.3.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in call' /Library/Ruby/Gems/2.3.0/gems/spring-2.0.2/lib/spring/client/command.rb:7:in call'
/Library/Ruby/Gems/2.3.0/gems/spring-2.0.2/lib/spring/client.rb:30:in run' /Library/Ruby/Gems/2.3.0/gems/spring-2.0.2/bin/spring:49:in <top (required)>'
/Library/Ruby/Gems/2.3.0/gems/spring-2.0.2/lib/spring/binstub.rb:31:in load' /Library/Ruby/Gems/2.3.0/gems/spring-2.0.2/lib/spring/binstub.rb:31:in <top (required)>'
/Users/idaryuunosuke/Documents/Ruby on Rails/ronbun/bin/spring:15:in <top (required)>' bin/rails:3:in load'
bin/rails:3:in `<main>'

Caused by:
NoMethodError: undefined method intger' for #<ActiveRecord::ConnectionAdapters::SQLite3::TableDefinition:0x00007f9a04f73fa0> Did you mean? integer Integer /Users/idaryuunosuke/Documents/Ruby on Rails/ronbun/db/migrate/20190524093717_create_papers.rb:4:in block in change'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/schema_statements.rb:282:in create_table' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:849:in block in method_missing'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:818:in block in say_with_time' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:818:in say_with_time'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:838:in method_missing' /Users/idaryuunosuke/Documents/Ruby on Rails/ronbun/db/migrate/20190524093717_create_papers.rb:3:in change'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:792:in exec_migration' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:776:in block (2 levels) in migrate'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:775:in block in migrate' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in with_connection'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:774:in migrate' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:953:in migrate'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1230:in block in execute_migration_in_transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1298:in block in ddl_transaction'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/database_statements.rb:235:in block in transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/transaction.rb:194:in block in within_new_transaction'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/transaction.rb:191:in within_new_transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/connection_adapters/abstract/database_statements.rb:235:in transaction'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/transactions.rb:210:in transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1298:in ddl_transaction'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1229:in execute_migration_in_transaction' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1201:in block in migrate_without_lock'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1200:in each' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1200:in migrate_without_lock'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1150:in migrate' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:1007:in up'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/migration.rb:985:in migrate' /Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/tasks/database_tasks.rb:171:in migrate'
/Library/Ruby/Gems/2.3.0/gems/activerecord-5.1.7/lib/active_record/railties/databases.rake:58:in block (2 levels) in <top (required)>' /Library/Ruby/Gems/2.3.0/gems/railties-5.1.7/lib/rails/commands/rake/rake_command.rb:21:in block in perform'
/Library/Ruby/Gems/2.3.0/gems/railties-5.1.7/lib/rails/commands/rake/rake_command.rb:18:in perform' /Library/Ruby/Gems/2.3.0/gems/railties-5.1.7/lib/rails/command.rb:46:in invoke'
/Library/Ruby/Gems/2.3.0/gems/railties-5.1.7/lib/rails/commands.rb:16:in `<top (required)>'