报表打开时报错

版本V5.0
补丁：5月8日补丁
问题描述：
第一次打开报表时报错无法打开，重装客户端后报表可以打开，但报表模板引入FML格式时报错，错误截图如下：

详细的错误信息为：
发生时间： 2015年6月5日 13:57:33
错误来源： System.Xml
错误信息： Data at the root level is invalid. Line 7428, position 1.
===================================================
调用堆栈：
at System.Xml.XmlTextReaderImpl.Throw(String res, String arg)
at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc)
at System.Xml.XmlDocument.Load(XmlReader reader)
at System.Xml.XmlDocument.Load(Stream inStream)
at Kingdee.BOS.WinForm.KDS20Lib.KDSWorkBook.Open(Byte[] byteData)
at Kingdee.BOS.KDSReport.frmSpread.Import2Fml()
at Kingdee.BOS.KDSReport.frmMain.bar_ItemClick(Object sender, ItemClickEventArgs e)
at DevExpress.XtraBars.BarItemLink.OnLinkClick()
at DevExpress.XtraBars.BarButtonItemLink.OnLinkAction(BarLinkAction action, Object actionArgs)
at DevExpress.XtraBars.ViewInfo.BarSelectionInfo.UnPressLink(BarItemLink link)
at DevExpress.XtraBars.Controls.CustomLinksControl.OnMouseUp(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at DevExpress.XtraBars.Controls.CustomControl.WndProc(Message& msg)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
错误数据： System.Collections.ListDictionaryInternal

请问各位大神这是什么问题？应该怎么处理？