SQLSTATE[23000]: Integrity Constraint Violation

Question

I have an employee chart and address. The address is receiving a foreign key from the employee, however, is giving the following error when I will insert:

Exception 'Pdoexception' with message 'SQLSTATE[23000]: Integrity Constraint Violation: 1452 Cannot add or update a Child Row: a Foreign key Cont straint fails

How do I fix it?

$consulta = "INSERT INTO ENDERECO (FUNCIONARIO_FUN_CODIGO) 
    VALUES(:codigoFuncionario)";

    try{
        $resultado=$db_con->prepare($consulta);

        //$resultado->BindParam(':cep',$cep,PDO::PARAM_STR);
        $resultado->BindParam(':codigoFuncionario',$codigoFuncionario,PDO::PARAM_STR);


        $resultado->execute();