Hi, finally had the time to go and look in the logs
I see this error
Een fout van het type E_ERROR werd veroorzaakt op regelnummer 2010 van het bestand /var/www/clients/client71/web286/web/wp-content/plugins/appointment-hour-booking/cp-main-class.inc.php. Foutmelding: Maximum execution time of 30 seconds exceeded
it is a new install, so cannot be the “large numbers of bookings”
thanks for the feedback
installed version is 1.4.46 , (latest i guess?)
