Index: indico/MaKaC/plugins/Collaboration/RecordingManager/common.py
===================================================================
--- indico/MaKaC/plugins/Collaboration/RecordingManager/common.py	(revision 336d4ec92ed8098e89658f882e7b5fbde90516c1)
+++ indico/MaKaC/plugins/Collaboration/RecordingManager/common.py	(revision 0836cb1dc25661eed61989f5a4074e738b381155)
@@ -145,5 +145,8 @@
                 # so get the owner contribution's start date
                 # and add the counter ctr_sc to that
-                event_info["date"]     = int(time.mktime(subcontribution.getOwner().getStartDate().timetuple()) + ctr_sc)
+                try:
+                    event_info["date"]     = int(time.mktime(subcontribution.getOwner().getStartDate().timetuple()) + ctr_sc)
+                except AttributeError:
+                    event_info["date"]       = int(time.mktime(conference.getStartDate().timetuple())) + ctr_sc
                 event_info["LOID"]       = ""
                 event_info["IndicoLink"] = doesExistIndicoLink(subcontribution)