Fatal error: Uncaught Error: Call to undefined function create_function() in /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-content/plugins/booking/core/lib/wpdev-booking-widget.php:173
Stack trace:
#0 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-content/plugins/booking/core/wpbc-include.php(81): require_once()
#1 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-content/plugins/booking/core/wpbc.php(240): require_once('/customers/f/8/...')
#2 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-content/plugins/booking/core/wpbc.php(47): Booking_Calendar->includes()
#3 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-content/plugins/booking/core/wpbc.php(434): Booking_Calendar::init()
#4 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-content/plugins/booking/core/wpbc.php(440): WPBC()
#5 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-content/plugins/booking/wpdev-booking.php(52): require_once('/customers/f/8/...')
#6 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-settings.php(360): include_once('/customers/f/8/...')
#7 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-config.php(91): require_once('/customers/f/8/...')
#8 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-load.php(37): require_once('/customers/f/8/...')
#9 /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-blog-header.php(13): require_once('/customers/f/8/...')
#10 /customers/f/8/2/berlinbicycleclub.be/httpd.www/index.php(17): require('/customers/f/8/...')
#11 {main}
  thrown in /customers/f/8/2/berlinbicycleclub.be/httpd.www/wp-content/plugins/booking/core/lib/wpdev-booking-widget.php on line 173