SharePoint OWACalendarPart : “An error occurred while attempting to add the item to the page.”

I'm trying to use Outlook Web Access Web part in SharePoint Server 2013. I have added the OWACalendarPart web part to Web part Gallery using following Methods.

1)Go to Web part Gallery.2)OnWeb part Gallery page,ClickFiles->NewDocument->Newin the ribbon.3)OnNew web part page, look forMicrosoft.SharePoint.Portal.WebControls.OWACalendarPart,Select the web part and click on populate gallery.

Now, I navigate to the SharePoint page where i want to add web part, clicked on Add web part. UnderMiscellaneous Category, I see OWACalendarPart.

When I click add, the page always saying "An error occurred while attempting to add the item to the page."

This is the error I get from Log.

An error occurred while attempting to add the gallery item [Miscellaneous]OWACalendarPart to the page.The error was:System.InvalidOperationException:There was an error generating the XML document.--->System.InvalidProgramException:CommonLanguageRuntime detected an invalid program.     at Microsoft.SharePoint.Portal.WebControls.OWAPartBase.get_OWAServerAddressRoot()
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterOWACalendarPart.Write13_OWACalendarPart(String n,String ns,OWACalendarPart o,Boolean isNullable,Boolean needType)
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterOWACalendarPart.Write14_WebPart(Object o)---End of inner exception stack trace ---
at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter,Object o,XmlSerializerNamespaces namespaces,String encodingStyle,String id)
at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter,Object o,XmlSerializerNamespaces namespaces,String encodingStyle)     at Microsoft.SharePoint.WebPartPages.WebPart.WriteXmlAsBytes(XmlSerializer xmls)
 at Microsoft.SharePoint.WebPartPages.BinaryWebPartSerializer.Serialize(SerializationMode mode,BinaryWebPartSerializerFlag binaryWebPartSerializerFlags,SPSerializationBinderBase serializationBinder,BinaryWebPartSerializerWriter writer)
 at Microsoft.SharePoint.WebPartPages.BinaryWebPartSerializer.Serialize(SerializationMode mode,BinaryWebPartSerializerFlag binaryWebPartSerializerFlags,SPSerializationBinderBase serializationBinder)
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartToStore(WebPart webPart,Int32 viewId,String viewGuid)     at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartInternal(SPSupersetWebPart superset,Boolean throwIfLocked)
 at Microsoft.SharePoint.WebPartPages.WebPartGallerySourceBase.AddItemToPage(WebPartZoneBase zone,Int32 zoneIndex,WebPart webPart)
at Microsoft.SharePoint.WebPartPages.WebPartGallerySourceBase.AddItemToPage(WebPartZoneBase zone,Int32 zoneIndex,WebPartGalleryItem item,String wpid)     at Microsoft.SharePoint.WebPartPages.WebPartAdder.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)

I tried Several Times But Nothing helped.How to add this OWACalendarPart to the page?