Lasse - 2017-02-26

I've seen posts with this title in the forums, but no sollutions that work for me.
I'm running Ubuntu 16.04 lts headless server. phpvirtualbox 5.0.5.
Any help would be very welcomed!

This is the error I get:
An error occurred communicating with your vboxwebsrv. No more requests will be sent by phpVirtualBox until the error is corrected and this page is refreshed. The details of this connection error should be displayed in a subsequent dialog box.

I click OK and get the following aditional details:
Error logging in to vboxwebsrv.

and then:

Exception Object
(
    [message:protected] => Error logging in to vboxwebsrv.
    [string:Exception:private] => 
    [code:protected] => 64
    [file:protected] => /var/www/html/mydomain/phpvirtualbox/endpoints/lib/vboxconnector.php
    [line:protected] => 220
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => /var/www/html/mydomain/phpvirtualbox/endpoints/lib/vboxconnector.php
                    [line] => 3147
                    [function] => connect
                    [class] => vboxconnector
                    [type] => ->
                    [args] => Array
                        (
                        )

                )

            [1] => Array
                (
                    [file] => /var/www/html/mydomain/phpvirtualbox/endpoints/lib/vboxconnector.php
                    [line] => 951
                    [function] => remote_vboxGetGuestOSTypes
                    [class] => vboxconnector
                    [type] => ->
                    [args] => Array
                        (
                            [0] => 
                        )

                )

            [2] => Array
                (
                    [file] => /var/www/html/mydomain/phpvirtualbox/endpoints/api.php
                    [line] => 316
                    [function] => __call
                    [class] => vboxconnector
                    [type] => ->
                    [args] => Array
                        (
                            [0] => vboxGetGuestOSTypes
                            [1] => Array
                                (
                                    [0] => 
                                    [1] => Array
                                        (
                                            [0] => Array
                                                (
                                                    [data] => Array
                                                        (
                                                            [responseData] => Array
                                                                (
                                                                )

                                                        )

                                                    [errors] => Array
                                                        (
                                                        )

                                                    [persist] => Array
                                                        (
                                                        )

                                                    [messages] => Array
                                                        (
                                                        )

                                                )

                                        )

                                )

                        )

                )

        )

    [previous:Exception:private] => 
)

Location:http://127.0.0.1:18083/

thanks for any help!