RunUO2.0RC1 crash log

[hmdw81]

For some reason, l;ast night my server started crashing, and it still continues today.
The crash logs are all identical (aside from number of players on)

Here are what they are ssaying.

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: 6/25/2006 12:00:30 PM
Mobiles: 4871
Items: 113646
Clients:
- Count: 2
+ 127.0.0.1: (account = cwalke32477) (mobile = 0x6D 'Algen Mugen')
+ 209.86.73.108: (account = DrayJ89) (mobile = 0xE02 'Carnage the Dragon King')

Exception:
System.ArgumentException: Illegal characters in path.
at System.Security.Permissions.FileIOPermission.HasIl legalCharacters(String[] str)
at System.Security.Permissions.FileIOPermission.AddPa thList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
at System.Security.Permissions.FileIOPermission..ctor (FileIOPermissionAccess access, AccessControlActions control, String[] pathList, Boolean checkForDuplicates, Boolean needFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
at System.IO.StreamWriter.CreateFile(String path, Boolean append)
at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding, Int32 bufferSize)
at System.IO.StreamWriter..ctor(String path)
at Server.Engines.Reports.HtmlRenderer.RenderSingle(P ersistableObject obj)
at Server.Engines.Reports.HtmlRenderer.Render()
at Server.Engines.Reports.Reports.UpdateOutput(Object state)
at System.Threading._ThreadPoolWaitCallback.WaitCallb ack_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionCon text executionContext, ContextCallback callback, Object state)
at System.Threading._ThreadPoolWaitCallback.PerformWa itCallback(Object state)

Can anyone tell me how to fix this? The shard was running fine since the rc1 release, untill last night when all h*** broke loose.

[Phantom]

What have you changed if anything?
Have you tried running RunUO in a different path?
What have you tried to problem solve your problem.