VM 3 stops working with SEF ativated. Products = Internal server error (500)

[Thomas Kampp]

Problem:
As soon as Joomla SEO SEF is activated the following stops working:

• All viewing of products (both product page and listing in category)
• All categories that contain/shows a product

Categories with only categories in the still work! It's only when there is a product that it stops working.
It worked in VM 2.6 (Joomla 2.5), before it was migrated to newest version of Joomla and Virtuemart.

See it here: http://danishcaresupply.dk/webshop/

They all result in:
Internal server error (500)

Setup:
Joomla 3.4.1
Virtuemart: 3.0.6.2
PHP: 5.3.10

I have ruled out the following:

• It is not a template problem
• It is not a template override problem
• It (seems) not to be a menu og meu item problem

Example of problem:
Both these are working:
VM3: http://danishcaresupply.dk/webshop/lindringsvat
VM2: http://danishcaresupply.dk/OLD/webshop/lindringsvat

Only VM 2 working (after category "rullemadras" has been clicked on the link above):
VM3: http://danishcaresupply.dk/webshop/lindringsvat/rullemadras
VM2: http://danishcaresupply.dk/OLD/webshop/lindringsvat/rullemadras

[GJC Web Design]

http://danishcaresupply.dk/webshop/lindringsvat/rullemadras works fine here....

[Thomas Kampp]

Thats because the sites were swapped back so Virtuemart 2 runs instead.

::: UPDATED :::
Example of problem:
Both these are working:
VM3: http://danishcaresupply.dk/NYT/webshop/lindringsvat
VM2: http://danishcaresupply.dk/webshop/lindringsvat

Only VM 2 working (after category "rullemadras" has been clicked on the link above):
VM3: http://danishcaresupply.dk/NYT/webshop/lindringsvat/rullemadras
VM2: http://danishcaresupply.dk/webshop/lindringsvat/rullemadras

[Studio 42]

Seems you have not set a menu(hidden or not) link for your shop
when i try
http://danishcaresupply.dk/NYT/hvem-er-vi/nyheder/28-adhd-hjaelpemiddelmesse
the category links in the module are http://danishcaresupply.dk/NYT/component/virtuemart/lindringsvat/lindringsvat-1?Itemid=167
Or you have make another mistake, youe template have a problem, you use another SEF system ....

[Thomas Kampp]

The problem was fixed when upgrading to Virtuemart 3.0.8. So it was a bug.