Page not found after Order/Product-Mail/Wishlist

-- HikaShop version -- : 2.6.1
-- Joomla version -- : 3.5.1
-- PHP version -- : 5.6.18
-- Browser(s) name and version -- : Chrome 49x
-- Error-message(debug-mod must be tuned on) -- : 0
Invalid address: We Love Hard Techno Shop

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hi everyone,

got an issue, i guess it comes after the last hika update to business 2.6.1.
joomla contact form works fine.

when i'll finish an order, wishlist request or and product mail request it comes to page not found
also at the backend when i change an order status with email to the customer

orders get placed into the database but no email is send

hope you can help me, thank you in advanced!

can be closed

joomla intern update doesn't saw the 2.6.2 version of hika, so i've update it manually and problem is solved