BETA: Fixing NPE in '''Hall of Suffering''' instance

Reported by: valdaron

L2J_DataPack_BETA/dist/game/data/scripts/instances/SeedOfInfinity/HallOfSuffering.java

@@ -591,8 +591,11 @@ public class HallOfSuffering extends Quest
 				for(L2PcInstance pl : player.getParty().getMembers())
 				{
 					st = pl.getQuestState(qn);
-					st.giveItems(736, 1);
-					st.giveItems(((HSWorld)world).rewardItemId, 1);
+					if (st != null)
+					{
+						st.giveItems(736, 1);
+						st.giveItems(((HSWorld)world).rewardItemId, 1);
+					}
 				}
 				return "";
 			}