Index: lams_tool_whiteboard/src/java/org/lamsfoundation/lams/tool/whiteboard/service/WhiteboardService.java
===================================================================
diff -u -r113c5a32c6fa73227ff541d4d197b1d6fe43a5b9 -r1e8e5594a91e4cec3648daefb10dc1c5e7ffb6e3
--- lams_tool_whiteboard/src/java/org/lamsfoundation/lams/tool/whiteboard/service/WhiteboardService.java	(.../WhiteboardService.java)	(revision 113c5a32c6fa73227ff541d4d197b1d6fe43a5b9)
+++ lams_tool_whiteboard/src/java/org/lamsfoundation/lams/tool/whiteboard/service/WhiteboardService.java	(.../WhiteboardService.java)	(revision 1e8e5594a91e4cec3648daefb10dc1c5e7ffb6e3)
@@ -335,7 +335,7 @@
 	Long userSessionId =
 		ratingUserId == null || !whiteboard.isGalleryWalkStarted() || !whiteboard.isGalleryWalkEditEnabled()
 			? null
-			: getUserByIDAndContent(ratingUserId, contentId).getSession().getSessionId();
+			: getLearnerByIDAndContent(ratingUserId, contentId).getSession().getSessionId();
 	for (WhiteboardSession session : sessionList) {
 	    // one new group for one session.
 	    SessionDTO group = new SessionDTO();