urgent help please

[retrohack001]

Je voudrais knowwhyI havethiserror.
IcannotaccessmyACP .... Noerrorsintheerrorlogs.Anyoneknowwhathappened?
Everythingwas workingfineandallof asuddenitstartedtohappen

Image:
Screenshot
Screenshot

 

[Mike]

If it suddenly happened without any action from you, you should contact your host to determine what they have changed.

 

[retrohack001]

If it suddenly happened without any action from you, you should contact your host to determine what they have changed.

my host said that he made no change on servers

 

[retrohack001]

my host said that he made no change on servers

 

[Martok]

You have a whole bunch of errors on your site (which I found as the URL is in one of your screenshots).

to load resource: the server responded with a status of 404 (Not Found)
http://hiddenity.eu/NYcKZ/js/audentio/uix_dark/functions.min.js?_v=874f6eb6 Failed to load resource: the server responded with a status of 404 (Not Found)
http://hiddenity.eu/js/jquery/jquery-1.11.0.min.js Failed to load resource: net::ERR_TOO_MANY_REDIRECTS
http://hiddenity.eu/styles/uix_dark/uix/logo_small.png Failed to load resource: net::ERR_TOO_MANY_REDIRECTS
http://hiddenity.eu/styles/uix_dark/uix/css/font-awesome.min.css Failed to load resource: net::ERR_TOO_MANY_REDIRECTS
index.php:107 Uncaught ReferenceError: $ is not defined
index.php:279 Uncaught ReferenceError: $ is not defined
index.php:308 Uncaught ReferenceError: $ is not defined
index.php:335 Uncaught ReferenceError: $ is not defined
index.php:1305 Uncaught ReferenceError: jQuery is not defined
http://hiddenity.eu/index.php?members/ Failed to load resource: the server responded with a status of 503 (Service Unavailable)
http://hiddenity.eu/ Failed to load resource: the server responded with a status of 503 (Service Unavailable)

Looks like there are fines missing from your style (UI.X Dark), you have redirect loop(s) in your .htaccess file and there's some undefined errors and you have a 503 error too.

I see you are also using Cloudflare. You might want to switch this off for now and fix all of the issues mentioned above before activating it again.