on one of the quotes we get an error saying:
Unexcepted Error

event log:
MSCRM Platform Error Report:
--------------------------------------------------------------------------------------------------------
Error: Exception from HRESULT: 0x80040216.

Error Message: Exception from HRESULT: 0x80040216.

Error Details: Details on this error have not been provided by the platform.

Source File: Not available

Line Number: Not available

Stack Trace Info: at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain()
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at System.Web.CallHandlerExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

any idea why this happens?