buildbot failure in on ofbizBranch18FrameworkPlugins

[buildbot]

The Buildbot has detected a new failure on builder 
ofbizBranch18FrameworkPlugins while building . Full details are available at:
    https://ci.apache.org/builders/ofbizBranch18FrameworkPlugins/builds/358

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

Buildslave for this Build: asf946_ubuntu

Build Reason: forced: by IRC user <jleroux> (privmsg): forces manual build to 
test dirs creation
Build Source Stamp: HEAD
Blamelist: 

BUILD FAILED: failed shell_6

Sincerely,
 -The Buildbot