In the master layout, sidebar.js contains a logical error that causes an exception when settings are not present. Specifically, the funciton tries to return settings.apiDocumentationEditor.enabled when settings may not be available. Change the function to resemble the following:
apiDocumentationEditorIsEnabled : function() {
// Saving the fields apiDocumentationEditor.enabled into the variable
// settings.
var settings = Settings.findOne({},{"apiDocumentationEditor.enabled": 1, _id:0})
// Accessing the value of enabled in the apiDocumentationEditor Object
if(settings && settings.apiDocumentationEditor) {
return settings.apiDocumentationEditor.enabled
}
}