Throwable Error

Error: Call to a member function trace() on null in /home/users5/k/kenada68/frameworks/zahra/2.3/scripts/proxy/k3.php:24
Stack trace:
#0 /home/users5/k/kenada68/frameworks/zahra/2.3/boot.php(157): require_once()
#1 /home/users5/k/kenada68/frameworks/zahra/2.3/index.php(31): require_once('/home/users5/k/...')
#2 /home/users5/k/kenada68/frameworks/zahra/index.php(60): include('/home/users5/k/...')
#3 /home/users5/k/kenada68/www/kenada.fr/demo/index.php(1): include_once('/home/users5/k/...')
#4 {main}