buildbot exception in ASF Buildbot on ofbiz-branch11

[buildbot]

The Buildbot has detected a new failure on builder ofbiz-branch11 while building ASF Buildbot.
Full details are available at:
 http://ci.apache.org/builders/ofbiz-branch11/builds/23

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

Buildslave for this Build: portunus_ubuntu

Build Reason: forced: by IRC user <jleroux> (privmsg): force manual build after false failing tests
Build Source Stamp: HEAD
Blamelist:

BUILD FAILED: exception interrupted upload_1

sincerely,
 -The Buildbot