(I can't access Fakku.)
Did this already:
I'm using FF 27 and get the cloudflare error 522 everytime i try to access the site, right now i'm using a proxy website to write this, but i can't read mangas. I also deleted every cookie for fakku and cleared the history, i also set firefox to clear the cache every time i close the browser. I just installed my OS new (java and flash are also installed) and upgraded to ff 27 but that shouldn't matter right?! I don't really know what to do anymore since the error i get, seems to be site-related according to cloudflare
https://support.cloudflare.com/hc/en-us/articles/200171906-Error-522
P.S.: I just downloaded the latest Chrome and got the same error, but when using a proxy site like now: http://proxysite.com/
I can access and write in the forums, but nothing more.
Edit: pic with message:
http://imageshack.com/a/img819/3306/o4jd.jpg
(Taken in Chrome)
I just uninstalled and deleted Firefox completely and reinstalled it, without any bookmarks or anything i tried accessing fakku -> Nothing changed...
TL;DR - To sum up:
Clear cache -> No change
Different Browser -> No change (tested with "fresh" installed Chrome)
"Naked" installation of Firefox 27 -> No change
Only partly workaround -> Using a proxysite
P.S.:I was in contact with the FAKKU-Team, I don't know if they did something or I did (which I doubt) but it seems to have wesolved itself.