When I try to register an account, I get this error:
There seems to be a problem with your login session; this action has been canceled as a precaution against session hijacking. Go back to the previous page, reload that page and then try again.
Log:
OutputPage::sendCacheControl: private caching; ** Request ended normally [session] Saving all sessions on shutdown Start request POST /wiki/index.php?title=Special:CreateAccount&returnto=Main+Page HTTP HEADERS: HOST: test.mysite.com X-REAL-IP: XXXX X-ACCEL-INTERNAL: /internal-nginx-static-location CONNECTION: close CONTENT-LENGTH: 263 CACHE-CONTROL: max-age=0 ORIGIN: http://test.mysite.com UPGRADE-INSECURE-REQUESTS: 1 USER-AGENT: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36 CONTENT-TYPE: application/x-www-form-urlencoded ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 REFERER: http://test.mysite.com/wiki/index.php?title=Special:CreateAccount&returnto=Main+Page ACCEPT-ENCODING: gzip, deflate ACCEPT-LANGUAGE: de-DE,de;q=0.8,en-US;q=0.6,en;q=0.4,es;q=0.2 [caches] cluster: MemcachedPhpBagOStuff, WAN: mediawiki-main-default, stash: db-replicated, message: MemcachedPhpBagOStuff, parser: MemcachedPhpBagOStuff, session: MemcachedPhpBagOStuff [caches] LocalisationCache: using store LCStoreCDB MWCryptRand::realGenerate: Generating cryptographic random bytes for MediaWiki\Session\SessionManager->generateSessionId/MWCryptRand::generateHex/MWCryptRand->realGenerateHex/MWCryptRand::generate/MWCryptRand->realGenerate MWCryptRand::realGenerate: openssl_random_pseudo_bytes generated 20 bytes of strong randomness. MWCryptRand::realGenerate: 0 bytes of randomness leftover in the buffer. [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" is unsaved, marking dirty in constructor [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" save: dataDirty=1 metaDirty=1 forcePersist=0 [cookie] already deleted setcookie: "DB27test_session", "", "1441642499", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "DB27testUserID", "", "1441642499", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "DB27testToken", "", "1441642499", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "forceHTTPS", "", "1441642499", "/", "www.mysite.com", "", "1" IP: XXXX Fully initialised [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" force-persist due to persist() [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" save: dataDirty=0 metaDirty=1 forcePersist=1 [cookie] setcookie: "DB27test_session", "mc7jnpat42jn76pi9ilsb6p174t6m2l8", "0", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "DB27testUserID", "", "1441642499", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "DB27testToken", "", "1441642499", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "forceHTTPS", "", "1441642499", "/", "www.mysite.com", "", "1" [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" Taking over PHP session [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" save: dataDirty=0 metaDirty=1 forcePersist=1 [cookie] already set setcookie: "DB27test_session", "mc7jnpat42jn76pi9ilsb6p174t6m2l8", "0", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "DB27testUserID", "", "1441642499", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "DB27testToken", "", "1441642499", "/", "www.mysite.com", "", "1" [cookie] already deleted setcookie: "forceHTTPS", "", "1441642499", "/", "www.mysite.com", "", "1" [MessageCache] MessageCache::load: Loading en... local cache is empty, got from global cache [authmanager] Captcha shown on account creation [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" data dirty due to dirty(): SimpleCaptcha->createAuthenticationRequest/SimpleCaptcha->storeCaptcha/CaptchaSessionStore->store/MediaWiki\Session\Session->set/MediaWiki\Session\SessionBackend->dirty Invalid user language code [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" save: dataDirty=1 metaDirty=0 forcePersist=0 [connect] Connected to database 0 at localhost User::getBlockedStatus: checking... QuickTemplate::__construct was called with no Config instance passed to it MWCryptRand::realGenerate: Generating cryptographic random bytes for PasswordFactory::generateRandomPasswordString/MWCryptRand::generateHex/MWCryptRand->realGenerateHex/MWCryptRand::generate/MWCryptRand->realGenerate MWCryptRand::realGenerate: openssl_random_pseudo_bytes generated 7 bytes of strong randomness. MWCryptRand::realGenerate: 0 bytes of randomness leftover in the buffer. MWCryptRand::realGenerate: Generating cryptographic random bytes for MediaWiki\Session\Session->getToken/MWCryptRand::generateHex/MWCryptRand->realGenerateHex/MWCryptRand::generate/MWCryptRand->realGenerate MWCryptRand::realGenerate: openssl_random_pseudo_bytes generated 16 bytes of strong randomness. MWCryptRand::realGenerate: 0 bytes of randomness leftover in the buffer. [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" data dirty due to dirty(): LoginSignupSpecialPage->getFakeTemplate/SpecialCreateAccount->getToken/MediaWiki\Session\Session->getToken/MediaWiki\Session\Session->set/MediaWiki\Session\SessionBackend->dirty [session] SessionBackend "mc7jnpat42jn76pi9ilsb6p174t6m2l8" save: dataDirty=1 metaDirty=0 forcePersist=0 Unstubbing $wgParser on call of $wgParser::firstCallInit from MessageCache->getParser Parser: using preprocessor: Preprocessor_DOM Unstubbing $wgLang on call of $wgLang::_unstub from ParserOptions->__construct SiteStats::loadAndLazyInit: reading site_stats from slave MediaWiki::preOutputCommit: all transactions committed MediaWiki::preOutputCommit: pre-send deferred updates completed