MSCRMTracing Error 17204

Hi Everyone,

I have done outlook integration with CRM 2016 on-cloud, whenever outlook inbox mail then track mail and create case that time error.

The stack trace in the log file shows the following:  

Log Name:      Application
Source:        MSCRMTracing
Date:          28/09/2016 15:28:21
Event ID:      17204
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      .local
Description:
CrmTrace encountered an error. Additional Info:Error in LoadSiteWideSettings [Value cannot be null.
Parameter name: input], Stack Trace :    at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
   at System.Environment.get_StackTrace()
   at Microsoft.Crm.CrmTraceSettings.Load(String traceDirectory)
   at Microsoft.Crm.CrmTrace.get_RefreshTrace()
   at Microsoft.Crm.CrmTrace.Write(Guid orgId, TraceCategory traceCategory, TraceLevel traceLevel, Int32 skipFrames, String format, Object[] args)
   at Microsoft.Crm.CrmTrace.Verbose(String format, Object[] args)
   at Microsoft.Crm.Application.Outlook.WebBrowserProtocol.WebBrowserVisitor.TraceVerbose(String message, Object[] arguments)
   at Microsoft.Crm.Application.Outlook.WebBrowser.HtmlWindowExtensions.SetExpandoProperty(IHTMLWindow2 window, String property, Object value)
   at Microsoft.Crm.Application.Outlook.WebBrowserProtocol.ScriptObjectManager.InjectScriptingObject(IHTMLWindow2 topWindow, String name, Object scriptingObject)
   at Microsoft.Crm.Application.Outlook.WebBrowserProtocol.ScriptObjectManager.InjectScriptingObjects()
   at Microsoft.Crm.Application.Outlook.WebBrowserProtocol.ScriptObjectManager.Ie_DownloadComplete()
   at SHDocVw.DWebBrowserEvents2_SinkHelper.DownloadComplete()
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture), Inner Exception: , Data: System.Collections.ListDictionaryInternal (Reporting Process:IEXPLORE, AppDomain:C:\Program Files (x86)\Internet Explorer\)
Event Xml:
<Event xmlns="schemas.microsoft.com/.../event">
  <System>
    <Provider Name="MSCRMTracing" />
    <EventID Qualifiers="49152">17204</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2016-09-28T14:28:21.000000000Z" />
    <EventRecordID>28547</EventRecordID>
    <Channel>Application</Channel>
    <Computer>.local</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Error in LoadSiteWideSettings [Value cannot be null.
Parameter name: input], Stack Trace :    at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
   at System.Environment.get_StackTrace()
   at Microsoft.Crm.CrmTraceSettings.Load(String traceDirectory)
   at Microsoft.Crm.CrmTrace.get_RefreshTrace()
   at Microsoft.Crm.CrmTrace.Write(Guid orgId, TraceCategory traceCategory, TraceLevel traceLevel, Int32 skipFrames, String format, Object[] args)
   at Microsoft.Crm.CrmTrace.Verbose(String format, Object[] args)
   at Microsoft.Crm.Application.Outlook.WebBrowserProtocol.WebBrowserVisitor.TraceVerbose(String message, Object[] arguments)
   at Microsoft.Crm.Application.Outlook.WebBrowser.HtmlWindowExtensions.SetExpandoProperty(IHTMLWindow2 window, String property, Object value)
   at Microsoft.Crm.Application.Outlook.WebBrowserProtocol.ScriptObjectManager.InjectScriptingObject(IHTMLWindow2 topWindow, String name, Object scriptingObject)
   at Microsoft.Crm.Application.Outlook.WebBrowserProtocol.ScriptObjectManager.InjectScriptingObjects()
   at Microsoft.Crm.Application.Outlook.WebBrowserProtocol.ScriptObjectManager.Ie_DownloadComplete()
   at SHDocVw.DWebBrowserEvents2_SinkHelper.DownloadComplete()
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture), Inner Exception: , Data: System.Collections.ListDictionaryInternal</Data>
    <Data>IEXPLORE</Data>
    <Data>C:\Program Files (x86)\Internet Explorer\</Data>
  </EventData>
</Event>