I am creating a micropost in the rails tutorial exercise, but when I go to root_url

StandardError
An error has occurred, this and all later migrations canceled: SQLite3 :: SQLException: duplicate column name: reset_sent_at

I get an error.
I know that User's reset_sent_at column is duplicated, but I'm not sure where and how it is duplicated. I would be grateful if anyone could give me some advice on how to resolve this error.

# app/models/user.rb
class User</pre>
<pre><code># app/controllers/password_resets_controller.rb
class PasswordResetsController</pre>
<pre><code># config/routes.rb
Rails.application.routes.draw do
  get'password_resets/new'
  get'password_resets/edit'
  root'static_pages # home'
  get'/ help', to:'static_pages # help'
  get'/ about', to:'static_pages # about'
  get'/ contact', to:'static_pages # contact'
  get'/ signup', to:'users # new'
  get'/ login', to:'sessions # new'
  post'/ login', to:'sessions # create'
  delete'/ logout', to:'sessions # destroy'
  resources: users
  resources: account_activations, only: [: edit]
  resources: password_resets, only: [: new,: create,: edit,: update]
end

# app/mailers/user_mailer.rb
class UserMailer</pre>
<pre><code># 20201223140935_add_reset_to_users.rb
class AddResetToUsers</pre>
<pre><code># 20201223141905_add_reset_sent_at_to_users.rb
class AddResetSentAtToUsers</pre>
<pre><code># db/schema.rb
ActiveRecord :: Schema.define (version: 2020_12_26_033956) do
  create_table "microposts", force:: cascade do | t |
    t.text "content"
    t.integer "user_id", null: false
    t.datetime "created_at", precision: 6, null: false
    t.datetime "updated_at", precision: 6, null: false
    t.index ["user_id", "created_at"],

 name: "index_microposts_on_user_id_and_created_at"
    t.index ["user_id"],

 name: "index_microposts_on_user_id"
  end
  create_table "users", force:: cascade do | t |
    t.string "name"
    t.string "email"
    t.datetime "created_at", precision: 6, null: false
    t.datetime "updated_at", precision: 6, null: falset.string "password_digest"
    t.string "remember_digest"
    t.boolean "admin", default: false
    t.string "activation_digest"
    t.boolean "activated", default: false
    t.datetime "activated_at"
    t.string "reset_digest"
    t.datetime "reset_sent_at"
    t.index ["email"],

 name: "index_users_on_email", unique: true
  end
  add_foreign_key "microposts", "users"
end

rails db: test: prepare
rails db: migrate RAILS_ENV = development
rails db: migrate: reset

20201223140935_add_reset_to_users.rb
20201223141905_add_reset_sent_at_to_users.rb
db/schema.rb

Try commenting out the reset_sent_at part of
=>I was able to access root_url, but an error occurred when transitioning to the password reset screen.

CentOS8

#Gemfile
source'https://rubygems.org'
git_source (: github) {| repo | "https://github.com/#{repo}.git"}
gem'rails', '6.0.3'
gem'bcrypt', '3.1.13'
gem'faker', '2.1.2'
gem'will_paginate', '3.1.8'
gem'bootstrap-will_paginate', '1.0.0'
gem'bootstrap-sass', '3.4.1'
gem'puma', '4.3.6'
gem'sass-rails', '5.1.0'
gem'webpacker', '4.0.7'
gem'turbolinks', '5.2.0'
gem'jbuilder', '2.9.1'
gem'bootsnap', '1.4.5', require: false
group: development,: test do
  gem'sqlite3', '1.4.1'
  gem'byebug', '11 .0.1', platforms: [: mri,: mingw,: x64_mingw]
end
group: development do
  gem'web-console', '4.0.1'
  gem'listen', '3.1.5'
  gem'spring', '2.1.0'
  gem'spring-watcher-listen', '2.0.1'
end
group: test do
  gem'capybara', '3.28.0'
  gem'selenium-webdriver', '3.142.4'
  gem'webdrivers', '4.1.2'
  gem'rails-controller-testing', '1.0.4'
  gem'minitest', '5.11.3'
  gem'minitest-reporters', '1.3.8'
  gem'guard', '2.16.2'
  gem'guard-minitest', '2.4.6'
end
group: production do
  gem'pg', '1.1.4'
end
# On Windows you need to include a tzinfo-data gem for timezone information
gem'tzinfo-data', platforms: [: mingw,: mswin,: x64_mingw,: jruby]