EasySocial cannot create events

Hi there,

I seem to be having a problem creating events in EasySocial.
Whenever i try to create events, I get the following error:

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 SQL=DELETE `a`, `b`, `c`, `d` FROM `kk31_social_clusters` AS `a` LEFT JOIN `kk31_social_clusters_nodes` AS `b` ON `a`.`id` = `b`.`cluster_id` LEFT JOIN `kk31_social_clusters_news` AS `c` ON `a`.`id` = `c`.`cluster_id` LEFT JOIN `kk31_social_events_meta` AS `d` ON `a`.`id` = `d`.`cluster_id` WHERE `a`.`parent_id` =

regards
Marc