Errors after Joomla 4 and Virtuemart 4 upgrade ('JDispatcher not found')

[jantje88]

Just upgraded Joomla 3 to Joomla 4, before that I updated Virtuemart to the latest (3x to 4.0.4).
Now several Virtuemart admin overview pages (like Orders, Shoppers, ..) give an error: 0 Class 'JDispatcher' not found.
Other admin pages (like Products, Shipment, ..) does not result in this error, but clicking a product results in another error: '0 Call to a member function getContent() on null'.

Reinstalling the Virtuemart package does not fix these issues.

Anyone experience the same with virtuemart?

[jantje88]

Just found the issue. Error was caused by the Advanced Shipping by Rules for VirtueMart plugin.

[GJC Web Design]

VM4.0.4 is certainly not the latest

https://dev.virtuemart.net/attachments/download/1330/com_virtuemart.4.0.7.10711_package_or_extract.zip