Windows 2008 backup failed with error code '2155348040'

Hello,

For the backup of our Windows 2008 servers, we use Windows Server backup. On one of the servers the backup will not run. In the application eventlog of the server there is the following message:

Log Name:      Application
Source:        Microsoft-Windows-Backup
Date:          2/16/2010 9:00:03 PM
Event ID:      546
Task Category: None
Level:         Error
Keywords:     
User:          <user>
Computer:      <computer>
Description:
Backup attempted at '2/16/2010 8:00:03 PM' failed to start, error code '2155348040'.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Backup" Guid="{1db28f2e-8f80-4027-8c5a-a11f7f10f62d}" />
    <EventID>546</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2010-02-16T20:00:03.559Z" />
    <EventRecordID>33498</EventRecordID>
    <Correlation />
    <Execution ProcessID="4744" ThreadID="3516" />
    <Channel>Application</Channel>
    <Computer>...</Computer>
    <Security UserID="S-1-5-21-3054417077-3708097399-2792259940-500" />
  </System>
  <EventData>
    <Data Name="BackupTime">2010-02-16T20:00:03.559Z</Data>
    <Data Name="ErrorCode">2155348040</Data>
    <Data Name="ErrorMessage">%%2155348040</Data>
  </EventData>
</Event>

Does anyone know how to solve this problem?

Best regards.

Wilfred van der Heijden