Error message

• Notice: Undefined index: node_gallery_file_display w field_extra_fields_get_display() (linia 697 z modules/field/field.module).
• Notice: Trying to access array offset on value of type null w _field_extra_fields_pre_render() (linia 731 z modules/field/field.module).
• Notice: Trying to access array offset on value of type null w _field_extra_fields_pre_render() (linia 733 z modules/field/field.module).