Fatal error: Uncaught Error: Call to undefined function mysql_query() in /home/klient.dhosting.pl/wrk/wrk/wp-content/plugins/event-calendar-scheduler/codebase/dhtmlxSchedulerConfigurator.php:38 Stack trace: #0 /home/klient.dhosting.pl/wrk/wrk/wp-content/plugins/event-calendar-scheduler/codebase/dhtmlxSchedulerConfigurator.php(32): SchedulerConfig->parseConfig() #1 /home/klient.dhosting.pl/wrk/wrk/wp-content/plugins/event-calendar-scheduler/scheduler.php(65): SchedulerConfig->__construct('scheduler_confi...', Object(DHXDBConfig), NULL, false) #2 /home/klient.dhosting.pl/wrk/wrk/wp-settings.php(371): include_once('/home/klient.dh...') #3 /home/klient.dhosting.pl/wrk/wrk/wp-config.php(99): require_once('/home/klient.dh...') #4 /home/klient.dhosting.pl/wrk/wrk/wp-load.php(37): require_once('/home/klient.dh...') #5 /home/klient.dhosting.pl/wrk/wrk/wp-blog-header.php(13): require_once('/home/klient.dh...') #6 /home/klient.dhosting.pl/wrk/wrk/index.php(17): require('/home/klient.dh...') #7 {main} thrown in /home/klient.dhosting.pl/wrk/wrk/wp-content/plugins/event-calendar-scheduler/codebase/dhtmlxSchedulerConfigurator.php on line 38