Multiple entries with same key: 110-new=MenuNode{id=110-new, caption=Neuer Geschäftspartner, type=NewRecord, elementId=540366, mainTableName=C_BPartner, children-count=0} and 110-new=MenuNode{id=110-new, caption=Neuer Geschäftspartner, type=NewRecord, elementId=540366, mainTableName=C_BPartner, children-count=0}
select node_id,m.name, m.webui_namenew from ad_treebar tb
join ad_menu m on m.ad_menu_id=tb.node_id
where tb.createdby=<userid>
user did have two favorites records pointing to the same menu ID (110).
Delete duplicate Records from AD_Treebar