VM 3.4 error log many errors

[2dmaster]

Joomla! 3.8.13 Stable, VirtueMart 3.4.2 Im always have this errors in /logs/com_virtuemart.log.php

What it is ? its critical ? maybe need fix some errors ?

2018-10-23 13:13:54 ERROR vmError: $vmlang not set
2018-10-23 13:13:54 $VMLANG NOT SET <pre>#0  vmTrace() called at [/public_html/administrator/components/com_virtuemart/helpers/vmtable.php:202]
#1  VmTable::getInstance() called at [/public_html/administrator/components/com_virtuemart/helpers/vmmodel.php:432]
#2  VmModel->_createTable() called at [/public_html/administrator/components/com_virtuemart/helpers/vmmodel.php:394]
#3  VmModel->getTable() called at [/public_html/administrator/components/com_virtuemart/helpers/vmmodel.php:600]
#4  VmModel->setMainTable() called at [/public_html/administrator/components/com_virtuemart/models/manufacturer.php:38]
#5  VirtueMartModelManufacturer->__construct() called at [/public_html/administrator/components/com_virtuemart/helpers/vmmodel.php:552]
#6  VmModel::getModel() called at [/public_html/plugins/vm_ie_imaud/exportyml/fields/manufacturerlist.php:25]
#7  JFormFieldManufacturerlist->getInput() called at [/public_html/libraries/src/Form/FormField.php:975]
#8  Joomla\CMS\Form\FormField->renderField() called at [/public_html/layouts/joomla/edit/fieldset.php:47]
#9  include(/public_html/layouts/joomla/edit/fieldset.php) called at [/public_html/libraries/src/Layout/FileLayout.php:125]
#10 Joomla\CMS\Layout\FileLayout->render() called at [/public_html/libraries/src/Layout/LayoutHelper.php:73]
#11 Joomla\CMS\Layout\LayoutHelper::render() called at [/public_html/layouts/joomla/edit/params.php:123]
#12 include(/public_html/layouts/joomla/edit/params.php) called at [/public_html/libraries/src/Layout/FileLayout.php:125]
#13 Joomla\CMS\Layout\FileLayout->render() called at [/public_html/libraries/src/Layout/LayoutHelper.php:73]
#14 Joomla\CMS\Layout\LayoutHelper::render() called at [/public_html/administrator/components/com_plugins/views/plugin/tmpl/edit.php:151]
#15 include(/public_html/administrator/components/com_plugins/views/plugin/tmpl/edit.php) called at [/public_html/libraries/src/MVC/View/HtmlView.php:695]
#16 Joomla\CMS\MVC\View\HtmlView->loadTemplate() called at [/public_html/libraries/src/MVC/View/HtmlView.php:230]
#17 Joomla\CMS\MVC\View\HtmlView->display() called at [/public_html/administrator/components/com_plugins/views/plugin/view.html.php:45]
#18 PluginsViewPlugin->display() called at [/public_html/libraries/src/MVC/Controller/BaseController.php:672]
#19 Joomla\CMS\MVC\Controller\BaseController->display() called at [/public_html/administrator/components/com_plugins/controller.php:51]
</pre>

[GJC Web Design]

#6  VmModel::getModel() called at [/public_html/plugins/vm_ie_imaud/exportyml/fields/manufacturerlist.php:25]

is this calling the model correctly?

[Milbo]

It is not including the vm config and the config is not loaded. The whole lang system is not initialized.