Javascript error break most of the javascript in Greenhopper

When I click on Agile tab, I see the following error in the javascript console:

Node was not found" code: "8
[Break on this error] var GH={};GH.VERSION="4.0";GH.Util={do...n(){},enable:function(){}};return D};

All Agile pages got this error, so most of the javascript are broken: User preferences, clicking on the issue name, Edit in Jira...