TlvOperationalErrorEvent: ObjectSchema<{
    errorState: FieldType<TypeFromFields<{
        errorStateDetails: OptionalFieldType<string>;
        errorStateId: FieldType<number>;
        errorStateLabel: OptionalFieldType<string>;
    }>>;
}> = ...

Body of the OperationalState operationalError event

MatterSpecification.v13.Cluster § 1.14.7.1