User Activation Link does'nt work

-- url of the page with the problem -- : www.cobinet.de
-- HikaShop version -- : business 2.3.3
-- Joomla version -- : 2.5.27

Hi,

since update from joomla 2.5.25 to 2.5.27 i have a problem
When users get activation mail and click aktivation link, they become error and are not activated
I must activate them in backend

What can I do?

Hi,

This is not an HikaShop error, but a Joomla one