Reporting configuration error

Hi,

I started getting these errors in the Forefront TMG server. I am new to TMG technology. Can anyone share any ideas on this errors? I get many errors similar to this one.

Log Name:      Application
Source:        Microsoft Forefront TMG Report Generator
Date:          12/6/2012 1:32:10 AM
Event ID:      30974
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      tmg0301.domain.com
Description:
The daily summaries could not be summarized into a monthly summary for "08/2012". This may cause the report for this period to be inaccurate. Verify that no prior reporting configuration alerts exist, and that the reporting services on the designated Forefront TMG report server are running and accessible from all the array members. Use the source location 1001.163.7.0.9193.500 to report the failure.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft Forefront TMG Report Generator" />
    <EventID Qualifiers="49152">30974</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2012-12-06T09:32:10.000000000Z" />
    <EventRecordID>28242</EventRecordID>
    <Channel>Application</Channel>
    <Computer>tmg0301.domain.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>08/2012</Data>
    <Data>1001.163.7.0.9193.500</Data>
  </EventData>
</Event>

Tom Jacob