Table not Rolling Back

When I try and use "php artisan migrate:refresh" I get the following error. [PDOException] SQLSTATE[HY000]: General error: 1 table "settings" already exists

Below is my migration file. When I do migrate:refresh, it refreshes all tables up until this settings table.

Below is my migration file

<?php

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateSettingsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('settings', function (Blueprint $table) {

            $table->increments('id');
            $table->string('treatmentName');
            $table->integer('numberOfReviewsShown');
            $table->integer('weekAlert');
            $table->integer('dayAlert');
            $table->integer('weeklyRent');
            $table->integer('dailyRent');
            $table->integer('numberOfDrugTestsShown');
            $table->integer('rentAlert');
            $table->integer('availableBeds');
            $table->timestamps();

        });
            DB::table('settings')->insert(
                array(
                    'numberOfReviewsShown' => '5',
                    'treatmentName' => 'Default',
                    'weekAlert' => '1',
                    'dayAlert' => '1',
                    'weeklyRent' => '170',
                    'dailyRent' => '25',
                    'rentAlert' => '341',
                    'availableBeds' => '100',
                    'numberOfDrugTestsShown' => '3',
                )
            );
    }
    public function down()
    {
        Schema::drop('settings');
    }
}