404 error on step 3 of checkout process

-- url of the page with the problem -- : www.kiteoutlet.eu
-- HikaShop version -- : HikaShop Business: 2.6.2
-- Joomla version -- : 3.5.1 Stable
-- PHP version -- : 5.5.23
-- Browser(s) name and version -- : Firefox / Chrome
-- Error-message(debug-mod must be tuned on) -- : 404
0 Invalid address: KiteOutlet.eu

I have just updated both Joomla and Hikashop business to the latest version. Now when I try to place an order I get a 404 error (and in the basic protostar Joomla template "0 Invalid address: KiteOutlet.eu"). The error occurs when you go to step 3 of the checkout process ( www.kiteoutlet.eu/en/checkout/checkout/task-step/step-3 ).
I have tried to figure out what is wrong, but I am now at a loss for what is causing this error.
There is no menu item forced on checkout. But even when there is the error remains.
I have tried both with and without simplified URLs, and my SEF and SEO settings are as in the attached image.
It does not matter which payment method I use.

Before updating everything worked fine. Any help in getting it to work again is much appreciated!

I've narrowed the cause of the issue down a bit. I've just restored the backup I made before updating to another server to try the updates again. After just updating Joomla to the latest version (3.5.1) from 3.4.7 this issue arises. So it does not appear to have anything to do with the latest version of Hikashop Business.
From the error message "0 Invalid address: KiteOutlet.eu" I think this error may have something to do with the site trying to connect to the address "KiteOutlet.eu" that I may have filled out in the back end somewhere, where there should have been www.kiteoutlet.eu . It also may have something to do with the emails that are sent from the site at step 3 of the checkout process.

I was the same after upgrade to Joomla 3.5.1 and Hikashop 2.6.2.

Any solution?

I also have the same issue after upgrading to Joomla 3.5.1 and either Hikashop 2.6.1 or 2.6.2 (both tried).
Please confirm if there are any solutions other than reverting to a previous version of Joomla via a backup.

Another error found. After updating Joomla 3.5.1 and 2.6.2 Hikashop, emerging language editing windows do not open.

Sorry for my English.

Nicholas,

Thanks for the quick response. I have confirmed that the HikaShop 2.6.2 does fix this issue.

FYI, it was not only HikaShop that was affected by this Joomla 3.5.1 update. I have three different form generation applications used on a variety of websites and each one were broken. My gut tells me that 'any' application that is submitting data to a 'reply-to' field is going to be broken.

I've just been caught out by this error, customers were getting a blank screen after checkout stage 3 and not being redirected to payment providers. With error reporting on the error I got was...

Catchable fatal error: Argument 1 passed to PlgSystemRedirect::handleError() must be an instance of JException, instance of phpmailerException given in /var/www/vhosts/artistpapers.co.uk/httpdocs/plugins/system/redirect/redirect.php on line 55

Even after the patch, the process now fails if you have more than one address in the payment notification or order creation admin notification email fields in configuration. That's new!

This is scary, I use a lot of forms on different sites.

I also had error on a hikshop (business) site with error page. The update to 2.6.2 (i could not see that update in Joomla, needed to donload it from your site) seems to help with the problem. With a testorder the error was gone and the order was going well from start to end.

Hi,

we at Crosstec thought the problem was just about the wrong use of addReplyTo() but in fact Joomla's behaviour changed in other areas, as well.

Before, Joomla! allowed previous transactions, such as form submissions, to pass and displayed notification messages at the top of the page about email issues that happened.

Now, Joomla! will throw a hard error (500) and stop the current transaction. This requires all extension developers to handle the thrown error, for example using a try / catch block and enqueuing the error message in the catch-block to restore the old behaviour (displaying a notification at the top of the page).

After we solved the addReplyTo() issue we were wondering why some people still faced this error message, so we had to adjust to other possible issues accordingly.

Best Regards,
Markus

I had the same problem with checkout on www.e-driver.net
The code fixed the problem.

I had to say thanks Nicolas

Thanks.. You just save my bacon...

nicolas wrote: @SarahW:
I've done some tests on my end and I'm able to have several email addresses.
What error do you have with that. And how did you configure these options ? Could you provide a screenshot ?

GREAT, this is working. Too bad we missed some customers now, they bought their fans somewhere else. But now it's working again, thanks m8. (and yes, it's Joomla's fault, NOT Hikashop).

Not sure if it is related by after enabling 'Send product emails for main vendor too' I get a 404 when saving a new product from the Hikarket vendor control panel.

I have downloaded the latest version of Hikashop & Hikamarket but still get the error.

Regards
Trevor

UPDATE: I have found a similar line in administrator/components/com_hikamarket/classes/product.php

$mail->mailer->addReplyTo(array($infos->user->user_email, $infos->user->name));

if(HIKASHOP_J30) {
	$mail->mailer->addReplyTo($mail->cleanText($infos->user->user_email), $user_name);
} else {
	$mail->mailer->addReplyTo(array($infos->user->user_email, $infos->user->name));
}