Fatal error: Uncaught Error: Call to undefined function koolreport\cache\apc_exists() in /srv/users/koolphp/apps/koolreport/public/library2/vendor/koolreport/cache/ApcCache.php:20 Stack trace: #0 /srv/users/koolphp/apps/koolreport/public/library2/vendor/koolreport/core/src/KoolReport.php(97): MyReport->__constructApcCache() #1 /srv/users/koolphp/apps/koolreport/public/examples-all/reports/cache/apccache/run.php(4): koolreport\KoolReport->__construct() #2 /srv/users/koolphp/apps/koolreport/public/examples-all/helpers/run.example.php(34): include('/srv/users/kool...') #3 /srv/users/koolphp/apps/koolreport/public/examples-all/reports/cache/apccache/index.php(1): include('/srv/users/kool...') #4 {main} thrown in /srv/users/koolphp/apps/koolreport/public/library2/vendor/koolreport/cache/ApcCache.php on line 20