Title: [bookingactivities_list] apache 500 / php error
Last modified: July 26, 2018

---

# [bookingactivities_list] apache 500 / php error

 *  Resolved [niclasl](https://wordpress.org/support/users/niclasl/)
 * (@niclasl)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/bookingactivities_list-apache-500-php-error/)
 * Hello guys!
 * First of all, thank you for an awesome plugin!
    Please keep up the good work!
 * Secondly, I’m on WordPress 4.9.7 with BA version 1.5.6.
    My site locale is d.
   m.Y, H:i, Norwegian Bokmål.
 * When adding the shortcode [bookingactivities_list] to a static page Apache gives
   me a 500 error.
 * I traced the error to function-bookings-system.php. I couldn’t understand all
   the magic sourcery going on here so I just made it work as easy as I could. But
   maybe this is something for you guys to look into when you have time?
 * Starting on line 1570 I made some changes (commented out the original):
 *     ```
       	foreach( $formatted_events as $event ) {
   
       		// Format the event duration
       		$event[ 'duration' ] = '';
       		if( $event[ 'start' ] && $event[ 'end' ] ) {
   
       			//$event_start = bookacti_format_datetime( $event[ 'start' ], $datetime_format );
       			//$event_end = bookacti_format_datetime( $event[ 'end' ], $datetime_format );
       			$event_start = $event[ 'start' ];
       			$event_end = $event[ 'end' ];
   
       			// Format differently if the event start and end on the same day
       			$start_and_end_same_day	= substr( $event_start, 0, 10 ) === substr( $event_end, 0, 10 );
       			if( $start_and_end_same_day ) {
   
       				$event_end = substr($event_end, 11,18 );
       				//$event_end = date_i18n( $time_format, strtotime( $event_end ) );
       				//$event_end = ! mb_check_encoding( $event_end, 'UTF-8' ) ? utf8_encode( $event_end ) : $event_end;
   
       			}
   
       			$class		= $start_and_end_same_day ? 'bookacti-booking-event-end-same-day' : '';
       			$separator	= $start_and_end_same_day ? $date_time_separator : $dates_separator;
   
       			// Place an arrow between start and end
       			$event[ 'duration' ] = '<span class="bookacti-booking-event-start" >' . $event_start . '</span>'
       								. '<span class="bookacti-booking-event-date-separator ' . $class . '" >' . $separator . '</span>'
       								. '<span class="bookacti-booking-event-end ' . $class . '" >' . $event_end . '</span>';
   
       		}
       ```
   
 * Best regards
    Niclas Lindgren

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Booking Activities Team](https://wordpress.org/support/users/bookingactivities/)
 * (@bookingactivities)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/bookingactivities_list-apache-500-php-error/#post-10536081)
 * Hello Niclas,
 * Thank you very much for your token of appreciation!
 * It appears that the problem comes from either “[date_i18n()](https://codex.wordpress.org/Function_Reference/date_i18n)”
   or “[utf8_encode()](http://php.net/manual/en/function.utf8-encode.php)“.
 * I am glad you could patch it for now. Unfortunatly, this is not the only place
   where this code is used so you may have other issues. Your patch will also be
   removed each time you update Booking Activities. So we need to find the error
   source and fix it for good.
 * First of all, try to deactivate all your plugins except Booking Activities and
   activate [Twenty Seventeen](https://fr.wordpress.org/themes/twentyseventeen/)
   theme instead of yours. Then, try again. If it works, the error comes from a 
   conflict.
 * Then, trigger the error 500 page, note the date and time when the error appears,
   and send me the PHP error log file and the date and time at [contact@booking-activities.fr](https://wordpress.org/support/topic/bookingactivities_list-apache-500-php-error/contact@booking-activities.fr?output_format=md).
   It will (hopefully) allow me to backtrack the error.
 * Regards,
    Yoan Cutillas
 *  Thread Starter [niclasl](https://wordpress.org/support/users/niclasl/)
 * (@niclasl)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/bookingactivities_list-apache-500-php-error/#post-10538189)
 * Many thanks for your swift reply Yoan!
 * I’m afraid I wont have time to do it this week, but I enabled php logging and
   just got the exception in the browser, does that help you a bit on the way maybe?
 * Here is the error message for the bookingactivities_list:
    `Fatal error: Uncaught
   Error: Call to undefined function mb_check_encoding() in /home/dragogxd/public_html/
   wp-content/plugins/booking-activities/functions/functions-global.php:939 Stack
   trace: #0 /home/dragogxd/public_html/wp-content/plugins/booking-activities/functions/
   functions-booking-system.php(1574): bookacti_format_datetime('mandag, juli 30...','
   l, F jS, Y g:i ...') #1 /home/dragogxd/public_html/wp-content/plugins/booking-
   activities/functions/functions-bookings.php(1221): bookacti_get_formatted_booking_events_list(
   Array) #2 /home/dragogxd/public_html/wp-content/plugins/booking-activities/controller/
   controller-shortcodes.php(153): bookacti_get_booking_list_rows(Array, Array, 
   2) #3 /home/dragogxd/public_html/wp-includes/shortcodes.php(319): bookacti_shortcode_bookings_list(
   Array, '', 'bookingactiviti...') #4 [internal function]: do_shortcode_tag(Array)#
   5 /home/dragogxd/public_html/wp-includes/shortcodes.php(197): preg_replace_callback('/\\[(\\[?)(
   bookin...', 'do_shortcode_ta...', '<p><!--[boo...') #6 /home/dragog in /home/
   dragogxd/public_html/wp-content/plugins/booking-activities/functions/functions-
   global.php on line 939`
 * Also the Booking Forms view doesn’t work, here is the error message for that:
   `
   Fatal error: Uncaught Error: Call to undefined function mb_check_encoding() in/
   home/dragogxd/public_html/wp-content/plugins/booking-activities/functions/functions-
   global.php:939 Stack trace: #0 /home/dragogxd/public_html/wp-content/plugins/
   booking-activities/class/class-forms-list.php(296): bookacti_format_datetime('
   juli 29, 2018', 'F d, Y') #1 /home/dragogxd/public_html/wp-content/plugins/booking-
   activities/class/class-forms-list.php(183): Forms_List_Table->get_form_list_items()#
   2 /home/dragogxd/public_html/wp-content/plugins/booking-activities/view/view-
   form-list.php(43): Forms_List_Table->prepare_items(Array) #3 /home/dragogxd/public_html/
   wp-content/plugins/booking-activities/booking-activities.php(431): include_once('/
   home/dragogxd/...') #4 /home/dragogxd/public_html/wp-includes/class-wp-hook.php(
   286): bookacti_forms_page('') #5 /home/dragogxd/public_html/wp-includes/class-
   wp-hook.php(310): WP_Hook->apply_filters('', Array) #6 /home/dragogxd/public_html/
   wp-includes/plugin.php(453): WP_Hook->do_action(Array) #7 /home in /home/dragogxd/
   public_html/wp-content/plugins/booking-activities/functions/functions-global.
   php on line 939`
 *  Plugin Author [Booking Activities Team](https://wordpress.org/support/users/bookingactivities/)
 * (@bookingactivities)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/bookingactivities_list-apache-500-php-error/#post-10539657)
 * Hello Niclas,
 * Thank you for your investigation!
 * This is probably because your web host has not activated the “mbstring” PHP extension.
   
   Can you ask your web host to activate it?
 * Regards,
    Yoan Cutillas
 *  Thread Starter [niclasl](https://wordpress.org/support/users/niclasl/)
 * (@niclasl)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/bookingactivities_list-apache-500-php-error/#post-10539781)
 * Thank you Yoan,
 * I enabled mbstring in my webhotel and now it works exactely as expected.
 * So the problem was entirely locally and related to missing php module.
 * Many thanks for your help/support!
 * Brgds
    Niclas
 *  Plugin Author [Booking Activities Team](https://wordpress.org/support/users/bookingactivities/)
 * (@bookingactivities)
 * [7 years, 10 months ago](https://wordpress.org/support/topic/bookingactivities_list-apache-500-php-error/#post-10539848)
 * You are welcome. I am glad that everything works properly now!
 * Regards,
    Yoan Cutillas

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘[bookingactivities_list] apache 500 / php error’ is closed to new replies.

 * ![](https://ps.w.org/booking-activities/assets/icon-256x256.png?rev=1709970)
 * [Booking Activities](https://wordpress.org/plugins/booking-activities/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/booking-activities/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/booking-activities/)
 * [Active Topics](https://wordpress.org/support/plugin/booking-activities/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/booking-activities/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/booking-activities/reviews/)

 * 5 replies
 * 2 participants
 * Last reply from: [Booking Activities Team](https://wordpress.org/support/users/bookingactivities/)
 * Last activity: [7 years, 10 months ago](https://wordpress.org/support/topic/bookingactivities_list-apache-500-php-error/#post-10539848)
 * Status: resolved