Fix File

• /home/sportsfe.../httpdocs/clone/wp-conte.../plugins/ninja-fo.../includes/Database/Models

• File: Field.php

• Content:

<?php if ( ! defined( 'ABSPATH' ) ) exit;

/**
 * Class NF_Database_Models_Field
 */
final class NF_Database_Models_Field extends NF_Abstracts_Model
{
    private $form_id = '';

protected $_type = 'field';

protected $_table_name = 'nf3_fields';

protected $_meta_table_name = 'nf3_field_meta';

protected $_columns = array(
        'label',
        'key',
        'parent_id',
        'type',
        'created_at'
    );
    public function __construct( $db, $id, $parent_id = '' )
    {
        parent::__construct( $db, $id, $parent_id );
    }

/**
	 * Delete
	 *
	 * Delete the object, its children, and its relationships.
	 *
	 * Also deletes data associated with field
	 *
	 * @return bool
	 */
    public function delete() {
    	return parent::delete();
    }

public static function import( array $settings, $field_id = '', $is_conversion = FALSE )
    {
        $settings = apply_filters( 'ninja_forms_before_import_fields', $settings );
        $settings[ 'saved' ] = 1;

if( $field_id && $is_conversion ) {
            $field = Ninja_Forms()->form()->field( $field_id )->get();
        } else {
            $field = Ninja_Forms()->form()->field()->get();
        }
        $field->update_settings( $settings );
        $field->save();
    }

} // End NF_Database_Models_Field

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