Backtrace error in MySQL after make:migration Laravel 5.3?

Question

MySQL

In general, everything is fine with the migration, if you click Ignore All , it will display all the fields as it should. Here is the error code:

<b>Some errors have been detected on the server!
Please look at the bottom of this window.</b>
Notice in .\libraries\dbi\DBIMysqli.class.php#519
 Undefined offset: 245

Backtrace

.\libraries\DatabaseInterface.class.php#2731: PMA_DBI_Mysqli->getFieldsMeta(object)
.\libraries\sql.lib.php#1927: PMA_DatabaseInterface->getFieldsMeta(object)
.\libraries\sql.lib.php#2245: PMA_getQueryResponseForResultsReturned(
object,
array,
string 'lara53',
string 'products',
NULL,
NULL,
object,
string './themes/original/img/',
string '100',
integer 50,
string 'SELECT * FROM `products` LIMIT 0, 50 ',
NULL,
NULL,
NULL,
NULL,
NULL,
string 'SELECT * FROM `products`',
NULL,
)
....

Here is the migration code

Schema::create('products', function (Blueprint $table) {
            $table->increments('product_id')->unsigned();
            $table->string('product_name', 100);
            $table->string('product_slug')->nullable();
            $table->integer('category_id')->unsigned()->nullable();
            $table->double('price', 10, 2)->nullable();
            $table->double('whole_sale_price', 10, 2)->nullable();
            $table->integer('whole_sale_price_starts_from')->nullable();
            $table->string('bar_code', 25)->unique();
            $table->integer('stock')->nullable();
            $table->boolean('status')->default(0);
            $table->string('description', 500)->nullable();
            $table->string('brand', 25)->nullable();
            $table->integer('weight')->nullable();
            $table->json('color')->nullable();
            $table->string('size')->nullable();
            $table->json('tags')->nullable();
            $table->string('rating_general')->nullable();
            $table->json('ratings_counter')->nullable();
            $table->string('sales_counter')->nullable();
            $table->string('views_counter')->nullable();
            $table->string('avatar_url')->nullable();
            $table->json('pics_urls')->nullable();
            $table->timestamps();
         });

Here is the factory code

$factory->define(App\Product::class, function (Faker\Generator $faker)
{
 
  return [
  'product_name' =>  $faker->unique()->catchPhrase,
  'price' => mt_rand( 100, 999 ),
  'bar_code' => str_random( 25 ),
  'stock' => mt_rand( 1, 100 ),
  'whole_sale_price' => mt_rand( 10, 100 ),
  'whole_sale_price_starts_from' => mt_rand( 10, 100 ),
  'status' => mt_rand( 0, 1 ),
  'description' => $faker->text(500),
  'brand' => $faker->randomElement(['Russian', 'Ukrainian', 'Franch', 'Germanian', 'Turkish', 'Egyptian']),
  'weight' => mt_rand( 1, 100 ),
  'size' =>  $faker->numberBetween(1, 30).' X '. $faker->numberBetween(1, 30).' X '. $faker->numberBetween(1, 30). $faker->randomElement(['m', 'mm', 'cm']),
  'tags' => json_encode($faker->word.','.$faker->word.','.$faker->word),
  'avatar_url' => '/img/'.$faker->numberBetween(1, 330).'.jpg',
  'rating_general' => mt_rand(0, 5),
  'ratings_counter' => json_encode([
  		mt_rand(0, 5),
    mt_rand(0, 5),
    mt_rand(0, 5),
    mt_rand(0, 5),
    mt_rand(0, 5),
 		]),
  'sales_counter' => mt_rand(0, 100),
  'views_counter' => mt_rand(0, 10000),
  'pics_urls' => json_encode([
    'images' => [
    '/img/'.$faker->numberBetween(1, 330).'.jpg',
    'img/'.$faker->numberBetween(1, 330).'.jpg',
    '/img/'.$faker->numberBetween(1, 330).'.jpg',
    'img/'.$faker->numberBetween(1, 330).'.jpg',
    '/img/'.$faker->numberBetween(1, 330).'.jpg',
    ]
    ]),
  'color' => json_encode([
    $faker->safeColorName,
    $faker->safeColorName,
    $faker->safeColorName,
    ]),
  'created_at' => $faker->dateTime( $max = 'now')
  ];
});

I understand that it then displays all the buzz there, I don’t understand what harm except alert 'and it does, this error and how to remove it?