Hi,
Well, it's great that the empty email issue is solved.
I couldn't find any way to access your database from your backend.
So I tried to make do with only the files access via PhocaCommander.
And as far as I can see, the reminder plugin works fine.
I've modified its code so that if you open the cron task URL with your browser (
www.yourwebsite.es/index.php?option=com_hikashop&ctrl=cron
), you'll see what the plugin is supposed to send and to which email address it is supposed to sending it to without the modifications.
Here is a screenshot of the result:
monosnap.com/file/7SE2feRjNcbIkKPzv0GbJqbyeoquIM
I've modified the plugin to not send the emails and not check the carts as reminded so that you can do the test several times if necessary and I've also changed the frequency of your cron task to 1 minute (instead of 60) and the frequency of the reminder plugin to 1 (instead of 900), so that you can more easily access that result page.
As you'll see, the five emails that the plugin is supposed to send next have the correct content (the content of the cart in the email corresponds to the cart for the email address if you check in the Customers>Carts menu.
And the modification date of the carts also fall within the period that you configured in the reminder plugin: any cart without order will be notified if the modification date falls between more than 30 minutes ( 1800 seconds ) and 30 days ( 2592000 seconds ).
Maybe you want to adapt the number of seconds in the settings of the plugin. I think that notifying someone if they didn't modify their cart or purchased after 30 minutes is too short. You probably want to set instead 86400, as it is by default, to only notify the customers after 1 day.
Once you're satisfied with the results you get with the cron task URL, you can install again the install package of the reminder that I gave you on top and it will remove my modifications to display the emails in the cron task URL and instead send them to the users.