buildbot failure in on ofbizBranch18FrameworkPlugins

[buildbot]

The Buildbot has detected a new failure on builder ofbizBranch18FrameworkPlugins while building ofbiz-framework. Full details are available at:
    https://ci.apache.org/builders/ofbizBranch18FrameworkPlugins/builds/519

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

Buildslave for this Build: asf946_ubuntu

Build Reason: downstream
Build Source Stamp: [branch release18.12] 742bc4650f3cc206dd70c5e0d1f38d4b4c590d97
Blamelist: Jacques Le Roux <[hidden email]>

BUILD FAILED: failed shell_7

Sincerely,
 -The Buildbot