I accidentally commit two things at once in [L3171].

QuestState.java part was contributed by Charus, all credits to him.
Fixed incorrect number of quest items display in inventory.
Here only little addition.

L2_GameServer/java/net/sf/l2j/gameserver/model/quest/QuestState.java

@@ -391,6 +391,7 @@ public final class QuestState
 			}
 			catch (Exception e)
 			{
+				e.printStackTrace();
 			}
 		}
 	}
@@ -433,6 +434,7 @@ public final class QuestState
 			}
 			catch (Exception e)
 			{
+				e.printStackTrace();
 			}
 		}
 		return result;
@@ -467,6 +469,7 @@ public final class QuestState
 			}
 			catch (Exception e)
 			{
+				e.printStackTrace();
 			}
 		}
 	}