Error in ODS extract script

When running the ODSProductionLogSummary script, I get the following error. I don't see anything unusual in the setup of this work center.

Internal error:Primary Work Center hierarchy not loaded for MY_WORK_CENTER (Message 101)
	at com.sap.me.ods.utils.WorkCenterHelper.workCenterTransfer(WorkCenterHelper.java:249)
	at com.sap.me.ods.olap.ODSProductionLogSummary5.processResult(ODSProductionLogSummary5.java:265)
	at com.sap.me.ods.olap.ODSProductionLogSummary5.summary(ODSProductionLogSummary5.java:100)
	at com.sap.me.ods.olap.ODSProductionLogRollupProcess.ODSSummary(ODSProductionLogRollupProcess.java:477)
	at com.sap.me.ods.ODSProductionLogSummary.main(ODSProductionLogSummary.java:60)