Version 4.3.0

applications/convert/sources/Software/Calendar/Mybb.php

@@ -200,7 +200,7 @@ class _Mybb extends \IPS\convert\Software
 				'event_content'		=> $row['description'],
 				'event_saved'		=> $row['dateline'],
 				'event_start_date'	=> \IPS\calendar\Date::ts( $row['starttime'] ),
-				'event_end_date'	=> \IPS\calendar\Date::ts( $row['endtime'] ),
+				'event_end_date'	=> $row['endtime'] ? \IPS\calendar\Date::ts( $row['endtime'] ) : NULL,
 				'event_approved'	=> $row['visible'],
 				'event_recurring'	=> $recurring,
 			) );