Can't Create A Custom Table for the Custom Model!

Hi There,

I'm creating a custom model following the instructions here.

Everything is working fine except Step 2: Create a custom table for the model, as the table does not get created in the DB and no data is saved!

Here's the code I'm using to create the table:

// Step 2: Create a custom table for the model.
add_action('init', function () {
   MetaBox\CustomTable\API::create(
      'wp_provider_plans',     // Table name.
      [  // Table columns (without ID).
         'provider' => 'BIGINT(20) UNSIGNED [0]',
         'service' => 'VARCHAR(255)',
         'price' => 'FLOAT',
      ],
      ['provider'],               // List of index keys.
      true                        // Must be true for models.
   );
});

How to solve this problem?