Hi all,
by sending a newsletter including virtuemart products I get the following error:
Joomla 3.9.22
Virtuemart 3.8.4 10335
AcyMailing Enterprice 5.10.16

Class 'VmModel' not found
/kunden/XXX/webseiten/juwelierdamken/administrator/components/com_virtuemart/models/product.php:23
Call stack
Function Location
1 () JROOT/administrator/components/com_virtuemart/models/product.php:23
2 include_once() JROOT/plugins/acymailing/virtuemart/virtuemart.php:1203
3 plgAcymailingVirtuemart->_replaceProducts() JROOT/plugins/acymailing/virtuemart/virtuemart.php:856
4 plgAcymailingVirtuemart->acymailing_replacetags() JROOT/libraries/joomla/event/event.php:70
5 JEvent->update() JROOT/libraries/joomla/event/dispatcher.php:160
6 JEventDispatcher->trigger() JROOT/administrator/components/com_acymailing/compat/joomla.php:315
7 acymailing_trigger() JROOT/administrator/components/com_acymailing/controllers/template.php:201
8 TemplateController->test() JROOT/libraries/src/MVC/Controller/BaseController.php:710
9 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/administrator/components/com_acymailing/acymailing.php:97
10 require_once() JROOT/libraries/src/Component/ComponentHelper.php:402
11 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377
12 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/AdministratorApplication.php:101
13 Joomla\CMS\Application\AdministratorApplication->dispatch() JROOT/libraries/src/Application/AdministratorApplication.php:159
14 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:196
15 Joomla\CMS\Application\CMSApplication->execute() JROOT/administrator/index.php:51
I know it has something to do with Virtuemart and / or Virtuemart plugin of AcyMailing.
Thanks for your support.
Best regards,
Stephan