I just updated my website to joomla 3.9.14 and virtuemart 3.6.10. But now there seems to be a problem with creating account by our customers. The go to 'Mijn accoun't and then "Account aanmaken' to create an account. Normally the registration form appears, but now a "Call to a member function get() on null " error when url https://www.waterpijp-bong.nl/index.php?option=com_virtuemart&view=user appears.
Can someone please help me out with this?