Error : Call to a member function sqlRetrieve() on null in wielerkalender.php[94]<br/><pre>Error Object
(
    [message:protected] => Call to a member function sqlRetrieve() on null
    [string:Error:private] => 
    [code:protected] => 0
    [file:protected] => /home/wfansus01/domains/wielernieuws.be/public_html/plugins/wielernieuws/wielernieuws/vninfoblock/wielerkalender/wielerkalender.php
    [line:protected] => 94
    [trace:Error:private] => Array
        (
            [0] => Array
                (
                    [file] => /home/wfansus01/domains/wielernieuws.be/public_html/plugins/wielernieuws/wielernieuws/wielernieuws.php
                    [line] => 678
                    [function] => showWielerKalender
                    [class] => wielernieuws\wielernieuws\vninfoblock\wielerkalender
                    [type] => ->
                )

            [1] => Array
                (
                    [file] => /home/wfansus01/domains/wielernieuws.be/public_html/plugins/wielernieuws/wielernieuws/wielernieuws.php
                    [line] => 288
                    [function] => showWielerKalender
                    [class] => wielernieuws\wielernieuws
                    [type] => ->
                )

            [2] => Array
                (
                    [file] => /home/wfansus01/domains/wielernieuws.be/public_html/sdlib/router/router.php
                    [line] => 169
                    [function] => Run
                    [class] => wielernieuws\wielernieuws
                    [type] => ->
                )

            [3] => Array
                (
                    [file] => /home/wfansus01/domains/wielernieuws.be/public_html/index.php
                    [line] => 120
                    [function] => doRoute
                    [class] => sdlib\Router
                    [type] => ->
                )

        )

    [previous:Error:private] => 
)