The following notices are shown when accessing the Field List at (admin/reports/fields).

Notice: Undefined index: comment_node_quiz_evaluation in _field_ui_bundle_admin_path() (regel 325 van public_html/site/modules/field_ui/field_ui.module).
Notice: Undefined index: comment_node_quiz_evaluation in field_ui_fields_list() (regel 35 van public_html/site/modules/field_ui/field_ui.admin.inc).
Notice: Undefined index: quiz_evaluation in _field_ui_bundle_admin_path() (regel 325 van public_html/site/modules/field_ui/field_ui.module).
Notice: Undefined index: quiz_evaluation in field_ui_fields_list() (regel 35 van
public_html/site/modules/field_ui/field_ui.admin.inc).