HELP! Cannot add Variant to cart

Hi,

When I click on the add to cart button for these variants, the AJAX request sent to the server returns with a 500 HTTP status and the content of the response has the message "104":
i.imgur.com/LbkIoOS.png
The data sent with the AJAX request is correct so it doesn't look like a customization issue of the product page layout, as is often the case.
This rather seems to indicate that there is a fatal error on the server side for some reason. It could be a bug, a plugin or some other extension doing something specific to these variants.
The first thing I would recommend is to delete these variants and recreate them to see if you still have the problem.
Then, what you can also do is to delete the whole product and recreate it.
That way, if the issue is linked to these variants / product, it should hopefully avoid the problem.
If that still doesn't help, then we would need to understand why this is happening. The first step is to get more information about the issue. It can be done by several means:
- checking the PHP error log for any fatal error message
- checking the apache error log for any useful information about the AJAX request
- trying to recreate the problem after activating the "error reporting" and "debug mode" settings of the Joomla configuration. It should hopefully display more information in the preview of the AJAX request that you can see under the "network" tab of the developer tools of your browser.
- lastly, you could spend an hour disabling / enabling each plugin of the groups "system" and "hikashop" via the Joomla plugins manager, each time checking if it helps of not. That way, you might be able to identify which plugin creates the issue, supposing it comes from a plugin.

Hi,

It's probably because some of the data in the database was inconsistent for these variants. Not sure why though. It's could be an issue with a CSV import, or a mass action. Hard to say wihtout spending hours debugging the code.