Paypal sends multiple confirmation emails

After paying through PayPal, the confirmation email is sent out multiple times. We contacted PayPal, but they say the problem originates in our system, not theirs.

Has anybody ever had this problem before? What can we do?

Thank you!


-- url of the page with the problem -- : www.elqava.com/index.php/subscriptions
-- HikaShop version -- : HikaShop Business: 2.2.1
-- Joomla version -- : 3.1.5
-- PHP version -- : 5.4.19

Hi,

The email you received are iDEAL emails, not HikaShop one.
Please contact the developer of the iDEAL plugin.

Regards,

Again, the email is created and sent through the Hikashop system.

Thank you for your help.

Hi,
Can you download the last Hikashop version through our website, install it and test it again ?