Error:  Data structure returned is not convertible in the requested format. Try to call this method with the parameters '&format=original&serialize=1'; you will get the original php data structure serialized. The data structure looks like this: 
 $data = array (
  0 => 
  array (
    'idsiteform' => 110,
    'idsite' => 52,
    'name' => 'add-payment-account-form',
    'description' => 'Auto created from page https://www.mgoal88.com/cashier/addpaymentaccount',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'add-payment-account-form',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'HolderName',
        'type' => 'text',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'SelectedBankValue',
        'type' => 'select',
        'displayName' => '',
      ),
      2 => 
      array (
        'name' => 'AccountNumber',
        'type' => 'text',
        'displayName' => '',
      ),
      3 => 
      array (
        'name' => 'AtmCardNumber',
        'type' => 'number',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 08:55:16',
    'updated_date' => '2021-12-07 08:59:09',
  ),
  1 => 
  array (
    'idsiteform' => 118,
    'idsite' => 52,
    'name' => 'BonusHistoryForm',
    'description' => 'Auto created from page https://www.mgoal88.com/loyalty/bonus',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'BonusHistoryForm',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'IntervalStart',
        'type' => 'date',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'IntervalEnd',
        'type' => 'date',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 11:31:34',
    'updated_date' => '2021-12-07 12:12:21',
  ),
  2 => 
  array (
    'idsiteform' => 112,
    'idsite' => 52,
    'name' => 'edit-player-form',
    'description' => 'Auto created from page https://www.mgoal88.com/account/profile-vnd',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'edit-player-form',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'PreferredLanguage',
        'type' => 'select',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'OldPassword',
        'type' => 'password',
        'displayName' => '',
      ),
      2 => 
      array (
        'name' => 'Password',
        'type' => 'password',
        'displayName' => '',
      ),
      3 => 
      array (
        'name' => 'FirstName',
        'type' => 'text',
        'displayName' => '',
      ),
      4 => 
      array (
        'name' => 'DateOfBirth',
        'type' => 'date',
        'displayName' => '',
      ),
      5 => 
      array (
        'name' => 'Username',
        'type' => 'text',
        'displayName' => '',
      ),
      6 => 
      array (
        'name' => 'change-password-form-layout',
        'type' => 'checkbox',
        'displayName' => '',
      ),
      7 => 
      array (
        'name' => 'mSportsOdd',
        'type' => 'select',
        'displayName' => '',
      ),
      8 => 
      array (
        'name' => 'SportsOdd',
        'type' => 'select',
        'displayName' => '',
      ),
      9 => 
      array (
        'name' => 'MobilePhone',
        'type' => 'text',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 08:58:42',
    'updated_date' => '2021-12-09 14:51:10',
  ),
  3 => 
  array (
    'idsiteform' => 116,
    'idsite' => 52,
    'name' => 'MyRewardsHistoryForm',
    'description' => 'Auto created from page https://www.mgoal88.com/loyalty/rewards',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'MyRewardsHistoryForm',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'IntervalStart',
        'type' => 'date',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'IntervalEnd',
        'type' => 'date',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 11:25:57',
    'updated_date' => '2021-12-07 12:12:35',
  ),
  4 => 
  array (
    'idsiteform' => 117,
    'idsite' => 52,
    'name' => 'RebatesHistoryForm',
    'description' => 'Auto created from page https://www.mgoal88.com/loyalty/rebates',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'RebatesHistoryForm',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'IntervalStart',
        'type' => 'date',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'IntervalEnd',
        'type' => 'date',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 11:26:55',
    'updated_date' => '2021-12-07 11:31:43',
  ),
  5 => 
  array (
    'idsiteform' => 115,
    'idsite' => 52,
    'name' => 'redeem-loyalty-points-form',
    'description' => 'Auto created from page https://www.mgoal88.com/loyalty/rewards',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'redeem-loyalty-points-form',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'RedeemdLoyaltyPointsAmount',
        'type' => 'text',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'redeem-amount',
        'type' => 'text',
        'displayName' => '',
      ),
      2 => 
      array (
        'name' => 'points-balance-remaining',
        'type' => 'text',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 11:25:57',
    'updated_date' => '2021-12-07 12:12:39',
  ),
  6 => 
  array (
    'idsiteform' => 114,
    'idsite' => 52,
    'name' => 'refer-a-friend-form',
    'description' => 'Auto created from page https://www.mgoal88.com/referafriend',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'refer-a-friend-form',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'Email1',
        'type' => 'email',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'Email2',
        'type' => 'email',
        'displayName' => '',
      ),
      2 => 
      array (
        'name' => 'Email3',
        'type' => 'email',
        'displayName' => '',
      ),
      3 => 
      array (
        'name' => 'Email4',
        'type' => 'email',
        'displayName' => '',
      ),
      4 => 
      array (
        'name' => 'Email5',
        'type' => 'email',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 11:24:31',
    'updated_date' => '2021-12-07 12:01:04',
  ),
  7 => 
  array (
    'idsiteform' => 107,
    'idsite' => 52,
    'name' => 'register-form',
    'description' => 'Auto created from page https://www.mgoal88.com/',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'register-form',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'FirstName',
        'type' => 'text',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'UserName',
        'type' => 'text',
        'displayName' => '',
      ),
      2 => 
      array (
        'name' => 'Password',
        'type' => 'password',
        'displayName' => '',
      ),
      3 => 
      array (
        'name' => 'Email',
        'type' => 'email',
        'displayName' => '',
      ),
      4 => 
      array (
        'name' => 'PhonePrefix',
        'type' => 'text',
        'displayName' => '',
      ),
      5 => 
      array (
        'name' => 'MobilePhone',
        'type' => 'tel',
        'displayName' => '',
      ),
      6 => 
      array (
        'name' => 'Currency',
        'type' => 'text',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 08:45:28',
    'updated_date' => '2022-03-10 17:18:04',
  ),
  8 => 
  array (
    'idsiteform' => 113,
    'idsite' => 52,
    'name' => 'reset-password-form',
    'description' => 'Auto created from page https://www.mgoal88.com/',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'reset-password-form',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'Password',
        'type' => 'password',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'ConfirmPassword',
        'type' => 'password',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 09:16:14',
    'updated_date' => '2021-12-07 09:16:14',
  ),
  9 => 
  array (
    'idsiteform' => 109,
    'idsite' => 52,
    'name' => 'transfer-create-form',
    'description' => 'Auto created from page https://www.mgoal88.com/cashier/transfer',
    'status' => 'running',
    'in_overview' => 0,
    'match_form_rules' => 
    array (
      0 => 
      array (
        'attribute' => 'form_id',
        'pattern' => 'equals_exactly',
        'value' => 'transfer-create-form',
      ),
    ),
    'match_page_rules' => 
    array (
    ),
    'conversion_rules' => 
    array (
    ),
    'fields' => 
    array (
      0 => 
      array (
        'name' => 'SourceWalletId',
        'type' => 'select',
        'displayName' => '',
      ),
      1 => 
      array (
        'name' => 'DestinationWalletId',
        'type' => 'select',
        'displayName' => '',
      ),
      2 => 
      array (
        'name' => 'Amount',
        'type' => 'text',
        'displayName' => '',
      ),
    ),
    'auto_created' => true,
    'created_date' => '2021-12-07 08:54:27',
    'updated_date' => '2021-12-07 11:02:51',
  ),
);