buildbot exception in on ofbizTrunkFrameworkPlugins

[buildbot]

The Buildbot has detected a build exception on builder ofbizTrunkFrameworkPlugins while building ofbiz-plugins. Full details are available at:
    https://ci.apache.org/builders/ofbizTrunkFrameworkPlugins/builds/1393

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

Buildslave for this Build: asf945_ubuntu

Build Reason: The AnyBranchScheduler scheduler named 'onTrunkPluginsCommit' triggered this build
Build Source Stamp: [branch trunk] ade15ec80a6b241ad2e92ba89ab6bf88f9fde8cf
Blamelist: Suraj Khurana <[hidden email]>

BUILD FAILED: exception upload_2

Sincerely,
 -The Buildbot