Strange Error

[zerodowned]

Spoiler: Never mind

Was in the process of carrying thing over from RunUO to Serv.
Everything is compiling fine but any time I restart/start the server with Mobiles, not player mobiles, spawned or added manually i get this.

Any ideas? If nothing else, I'll try starting over to figure out what's causing the problem.

World: Loading...An error was encountered while loading a saved object
- Type: Server.Mobiles.Cow
- Serial: 0x00000002
Delete the object? (y/n)
Delete all objects of that type? (y/n)
After pressing return an exception will be thrown and the server will terminate.


Error:
System.FormatException: Index (zero based) must be greater than or equal to zero
and less than the size of the argument list.
at System.Text.StringBuilder.AppendFormat(IFormatProvider provider, String fo
rmat, Object[] args)
at System.String.Format(IFormatProvider provider, String format, Object[] arg
s)
at System.String.Format(String format, Object[] args)
at Server.World.Load() in c:\Program Files\ServUO\ServUO-master\Server\World.
cs:line 844
at Server.Core.Main(String[] args) in c:\Program Files\ServUO\ServUO-master\S
erver\Main.cs:line 588
This exception is fatal, press return to exit

Turns out that I forgot to add something onto Ser/Deser for basecreature.