Crash report help.

[Dreadfull]

not exactly well tuned in what all this crash report displays so asking for any help. First time it has happend and usually the 2.0 runs perfectly for weeks at a time.

Server Crash Report
===================

RunUO Version 2.0, Build 2357.32527
Operating System: Microsoft Windows NT 5.1.2600 Service Pack 2
.NET Framework: 2.0.50727.42
Time: 11/24/2006 1:29:43 PM
Mobiles: 5948
Items: 112499
Clients:
- Count: 1
+ 12.218.18.169: (account = misafox) (mobile = 0x32 'Misa')

Exception:
System.MissingMethodException: No parameterless constructor defined for this object.
   at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck)
   at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache)
   at System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache)
   at System.Activator.CreateInstance(Type type, Boolean nonPublic)
   at Server.Mobiles.GenericBuyInfo.GetObject()
   at Server.Mobiles.GenericBuyInfo.GetDisplayObject()
   at Server.Mobiles.BaseVendor.VendorBuy(Mobile from)
   at Server.ContextMenus.VendorBuyEntry.OnClick()
   at Server.Network.PacketHandlers.ContextMenuResponse(NetState state, PacketReader pvSrc)
   at Server.Network.PacketHandlers.ExtendedCommand(NetState state, PacketReader pvSrc)
   at Server.Network.MessagePump.HandleReceive(NetState ns)
   at Server.Network.MessagePump.Slice()
   at Server.Core.Main(String[] args)

[Kenko]

Placed a non-regular item in vendors lately?

[Dreadfull]

found out that bsecause of the FS taming system I placed the petpowerupscroll into the vendor table for the animal tamer. which results bad stuff I guess hehe. Fixed it.

[Sotho Tal Ker]

The reason is that you cannot do [add petpowerupscroll without additional parameters like skill and value.
If you place it on a vendor, it tries to create the item, but since it is placed there without those additional parameters the server does crash, because it cannot find a Method to construct the object without parameters (Or a Method which uses default parameters)