Hi Nicolas,
I'm having another problem that I think is related to this patch. When creating a new product, after clicking to "save" it loaded a blank white screen. I checked the Joomla /administrator error_log after some testing and found this log entry:
PHP Fatal error: Class 'hikaInput' not found in /public_html/plugins/hikashop/taxcloud/taxcloud.php on line 672
The testing:
After trying to create the new product, it was not in the products list to edit or delete. I tried to create the product again, and change the tax settings. It failed and returned the page with an alert stating that the alias was already in use. I entered a custom alias and it said the product code was already in use.
I was able to find and remove these "ghost" products using HikaShop's System -> Mass Actions, searching for the latest product IDs and removing the elements after a test which displayed the results.
You can see in the screenshots that there are products with ID up to 254. In the mass action filtering products with an ID >= 255, you can see it returned one with the ID 262. This was after I removed previous attempts.
Seems there is something not quite right with the TaxCloud plugin after using this patch. Can you advise & assist?