Create a new shipping method gives an error

[pimo]

I only find this file for shipping methods, could someone check if there is something different from your file?. administrator/components/com_virtuemart/tables

<?php

/**
*
* Shipment  table
*
* @package   VirtueMart
* @subpackage Shipment
* @author RickG
* @link https://virtuemart.net
* @copyright Copyright (c) 2004 - 2010 VirtueMart Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
* VirtueMart is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* @version $Id: shipmentcarriesr.php -1   $
*/
// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die('Restricted access');

/**
* Shipment  table class
* The class is is used to manage the shipment in the shop.
*
* @package   VirtueMart
* @author RickG, Max Milbers
*/
class TableShipmentmethods extends VmTable {

    /** @var int Primary key */
    var $virtuemart_shipmentmethod_id = 0;

    /** @var int Vendor ID */
    var $virtuemart_vendor_id = 0;

    /** @var int Shipment Joomla plugin I */
    var $shipment_jplugin_id = 0;

    /** @var string Shipment  name */
    var $shipment_name = '';

    /** @var string Shipment  name */
    var $shipment_desc = '';
    var $slug;
    /** @var string Element of shipmentmethod */
    var $shipment_element = '';

    var $currency_id = 0;

    /** @var string parameter of the shipmentmethod */
    var $shipment_params = 0;

    var $ordering = 0;
    var $shared = 0;

    /** @var int published boolean */
    var $published = 1;

    /**
     * @author Max Milbers
     * @param JDataBase $db
     */
    function __construct(&$db) {
      parent::__construct('#__virtuemart_shipmentmethods', 'virtuemart_shipmentmethod_id', $db);
      // we can have several time the same shipment name. It is the vendor problem to set up correctly his shipment rate.
      // $this->setUniqueName('shipment_name');
      $this->setObligatoryKeys('shipment_jplugin_id');
      $this->setObligatoryKeys('shipment_name');
      $this->setLoggable();
       $this->setLockable();
      $this->setTranslatable(array('shipment_name', 'shipment_desc'));
      $this->setSlug('shipment_name');
      $this->setTableShortCut('shipm');

      $varsToPushParam = array('display_color' => array('','char'));

      $this->setParameterable('shipment_params',$varsToPushParam);

    }


}

// pure php no closing tag

[Margriet]

You have a problem with your tables, not with your files. If you can, install only Joomla and VM with sample data in a subfolder with a new database and check if you have the same problem(s).

[pimo]

 I don't know, I'm not a programmer, but the slug is one of the problems and I see that it is different from the rest of the variables: 

var $slug;

while all other variables are different, for example the line above:

var $shipment_desc = '';

[Margriet]

Please read carefully: You have a problem with your tables, not with your files!!!
So check your database!

[pimo]

Where can I see how the database should be configured? I see my database, but I don't know if it's correct.

[pimo]

the problem is still in 4.0.22.

[Margriet]

You have a problem with your tables, not with your files. If you can, install only Joomla and VM with sample data in a subfolder with a new database and check if you have the same problem(s).

As you are the only one having this problem, please debug following the advice I gave you earlier.

[pimo]

I don't know how to solve this problem, if you know tell me how to fix it. This problem has been made in some Virtuemart update, not created by me.

[pimo]

You have a problem with your tables, not with your files. If you can, install only Joomla and VM with sample data in a subfolder with a new database and check if you have the same problem(s).

As you are the only one having this problem, please debug following the advice I gave you earlier.

I put a link of a post in which the same problem is explained and it is said that it has been fixed in the next version. So I don't think it's just my mistake.
This was working fine. Also there are more problems in the database with other features, like adding the products of an order (add a new product to the order), it also gives database problems.