Hi,
I have a feeling the error message we see doesn't reflect on what the problem actually is.
Also, I can see you have the "debug" setting of the Joomla configuration activated (at least it was the case at the time of my tests), but the error page doesn't display the debug data on the error.
That's usually because of the error.php of the template. Rename that file and try again to reproduce the error, and that will give you the default error message page of Joomla, with the extra details when the debug is activated.
Do that and we should learn more on what's going on.
I'm feeling the issue might not be linked to HikaShop. HikaShop interacts with the smart search twice:
- when the products are indexed. This is done when a product is saved in the backend, or if you reindex everything in the backend.
- when the smart search is displaying results, it asks the HikaShop SEF router to convert the non SEF URL of the product to a SEF URL. This should be the same whether you search for voltaren or voltare.
Also, besides the template and the modules displayed on the template positions, the main area of the page is display by the smart search system itself.
And if I add the &tmpl=component parameter in the URL, the voltare page still displays fine:
i.imgur.com/qXXz4Vk.png
And the voltaren page still has the same error page.
That indicates that the problem is not with the template or the modules. What's left there is 95% the smart search.