buildbot exception in on openoffice-win7

[buildbot]

The Buildbot has detected a build exception on builder openoffice-win7 while 
building . Full details are available at:
    https://ci.apache.org/builders/openoffice-win7/builds/749

Buildbot URL: https://ci.apache.org/

Buildslave for this Build: bb-win10

Build Reason: The Nightly scheduler named 'openoffice-win7-nightly' triggered 
this build
Build Source Stamp: [branch trunk] HEAD
Blamelist: 

BUILD FAILED: exception move logs to web cleanup tmp

Sincerely,
 -The Buildbot