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How do I resolve this error, 'Trying to get property of non-object in /.../libraries/joomla/session/handler/joomla.php on line 74'? Here's line 74 or the joomla.php file, $cookie = $this->input->cookie;. This started after updating the site to Joomla 3.7 and PHP 7.0, but also shows up with PHP 5.6. The site is running CiviCRM 4.7.18.

marked as duplicate by Chris Burgess, Jon G - Megaphone Tech, William Mortada, Aidan, Joe Murray May 22 '17 at 18:43

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