buildbot exception in on ofbizTrunkFramework

[buildbot]

The Buildbot has detected a build exception on builder ofbizTrunkFramework while building . Full details are available at:
    https://ci.apache.org/builders/ofbizTrunkFramework/builds/721

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

Buildslave for this Build: lares_ubuntu

Build Reason: The AnyBranchScheduler scheduler named 'onTrunkFrameworkCommit' triggered this build
Build Source Stamp: [branch ofbiz/ofbiz-framework/trunk] 1856455
Blamelist: jleroux

BUILD FAILED: exception shell_1 upload

Sincerely,
 -The Buildbot