Plugin Install - Stall

Trying to install a WPMUDEV Plugin, clicked the install button but It just keeps spinning. The install has stalled.

I have looked in the debug.log here it is:

[17-Jun-2016 19:51:36 UTC] [2016-06-17 20:51:36] - WPHB API: Sending request to https://premium.wpmudev.org/api/uptime/v1/stats/week?domain=http://hosker.info/
[17-Jun-2016 19:51:36 UTC] [2016-06-17 20:51:36] - WPHB API: Arguments:
[17-Jun-2016 19:51:36 UTC] [2016-06-17 20:51:36] - Array
(
    [headers] => Array
        (
            [Authorization] => Basic 8a5d91b41b98d9042c2c199d27ab6b8ab3150997
        )

    [sslverify] =>
    [method] => GET
    [timeout] => 20
)

[17-Jun-2016 19:51:37 UTC] [2016-06-17 20:51:37] - WPHB API: Response:
[17-Jun-2016 19:51:37 UTC] [2016-06-17 20:51:37] - Array
(
    [headers] => Array
        (
            [date] => Fri, 17 Jun 2016 19:51:37 GMT
            [content-type] => application/json; charset=UTF-8
            [connection] => close
            [set-cookie] => Array
                (
                    [0] => __cfduid=d846def27577aedddc1c648e0fcf474e61466193096; expires=Sat, 17-Jun-17 19:51:36 GMT; path=/; domain=.wpmudev.org; HttpOnly
                    [1] => abv=b; expires=Fri, 17-Jun-2016 19:49:57 GMT; Max-Age=-100; path=/
                )

            [x-content-type-options] => nosniff
            [access-control-expose-headers] => X-WP-Total, X-WP-TotalPages
            [access-control-allow-headers] => Authorization
            [allow] => GET
            [server] => cloudflare-nginx
            [cf-ray] => 2b49098833173530-LHR
        )

    [body] => {"code":"site_disabled","message":"Monitoring for this site is disabled. Please enable.","data":{"status":412,"manage_link":"https:\/\/premium.wpmudev.org\/hub\/my-websites\/?site_id=490214&tab_slug=uptime"}}
    [response] => Array
        (
            [code] => 412
            [message] => Precondition Failed
        )

    [cookies] => Array
        (
            [0] => WP_Http_Cookie Object
                (
                    [name] => __cfduid
                    [value] => d846def27577aedddc1c648e0fcf474e61466193096
                    [expires] => 1497729096
                    [path] => /
                    [domain] => .wpmudev.org
                    [httponly] =>
                )

            [1] => WP_Http_Cookie Object
                (
                    [name] => abv
                    [value] => b
                    [expires] => 1466192997
                    [path] => /
                    [domain] => premium.wpmudev.org
                    [max-age] => -100
                )

        )

    [filename] =>
)

[17-Jun-2016 19:51:37 UTC] [2016-06-17 20:51:37] - WPHB API: Sending request to https://premium.wpmudev.org/api/performance/v1/site/check/
[17-Jun-2016 19:51:37 UTC] [2016-06-17 20:51:37] - WPHB API: Arguments:
[17-Jun-2016 19:51:37 UTC] [2016-06-17 20:51:37] - Array
(
    [body] => Array
        (
            [domain] => http://hosker.info/
        )

    [headers] => Array
        (
            [Authorization] => Basic 8a5d91b41b98d9042c2c199d27ab6b8ab3150997
        )

    [sslverify] =>
    [method] => POST
    [timeout] => 0.1
    [blocking] =>
)

[17-Jun-2016 19:51:37 UTC] [2016-06-17 20:51:37] - WPHB API: Response:
[17-Jun-2016 19:51:37 UTC] [2016-06-17 20:51:37] - Array
(
    [headers] => Array
        (
        )

    [body] =>
    [response] => Array
        (
            [code] =>
            [message] =>
        )

    [cookies] => Array
        (
        )

)

[17-Jun-2016 19:52:04 UTC] PHP Notice:  Trying to get property of non-object in /var/www/html/wp-content/plugins/wp-defender/app/module/hardener-module/component/class-wd-plugin-theme-version.php on line 63
[17-Jun-2016 19:52:40 UTC] PHP Notice:  translate_plugin was called <strong>incorrectly</strong>. This function must be called before/inside the hook "plugins_loaded". Please see <a href="https://codex.wordpress.org/Debugging_in_WordPress">Debugging in WordPress</a> for more information. (This message was added in version 2.0.3.) in /var/www/html/wp-includes/functions.php on line 3897