Fatal error: Uncaught Error: Interface "RRule\RRuleInterface" not found in /home/rednewt/public_html/wp-content/plugins/events-calendar-pro/vendor/rlanvin/php-rrule/src/RSet.php:17
Stack trace:
#0 {main}
thrown in /home/rednewt/public_html/wp-content/plugins/events-calendar-pro/vendor/rlanvin/php-rrule/src/RSet.php on line 17