Fatal error: Uncaught Error: Class 'CI_Controller' not found in /var/www/vhosts/bossus.com/httpdocs/system/core/CodeIgniter.php:233
Stack trace:
#0 /var/www/vhosts/bossus.com/httpdocs/application/errors/error_general.php(2): get_instance()
#1 /var/www/vhosts/bossus.com/httpdocs/system/core/Exceptions.php(146): include('/var/www/vhosts...')
#2 /var/www/vhosts/bossus.com/httpdocs/system/core/Common.php(309): CI_Exceptions->show_error()
#3 /var/www/vhosts/bossus.com/httpdocs/system/core/URI.php(259): show_error()
#4 /var/www/vhosts/bossus.com/httpdocs/system/core/URI.php(300): CI_URI->_filter_uri()
#5 /var/www/vhosts/bossus.com/httpdocs/system/core/Router.php(167): CI_URI->_explode_segments()
#6 /var/www/vhosts/bossus.com/httpdocs/system/core/CodeIgniter.php(173): CI_Router->_set_routing()
#7 /var/www/vhosts/bossus.com/httpdocs/index.php(205): require_once('/var/www/vhosts...')
#8 {main}
thrown in /var/www/vhosts/bossus.com/httpdocs/system/core/CodeIgniter.php on line 233