Smarty Error on Count

[HostUNL]

exception 'Whoops\Exception\ErrorException' with message 'Call to a member function count() on null' in /home/hostunlo/public_html/client_area/templates_c/e1308d2505bcfc49a69d8b85287f9f16edae3263_0.file.viewcart.tpl.php:1098
Stack trace:
#0 /home/hostunlo/public_html/client_area/vendor/whmcs/whmcs-foundation/lib/Utility/Error/Run.php(0): WHMCS\Utility\Error\Run->handleError(1, 'Call to a membe...', '/home/hostunlo/...', 1098)
#1 [internal function]: WHMCS\Utility\Error\Run->handleShutdown()
#2 {main}

Any one have solution 

[pRieStaKos]

Check what did you do wrong on /templates/{your-template}/viewcart.tpl.