Facebook klappt plötzlich nicht mehr

[dr.oll]

Hallo,
seit ungefähr einer Woche klappt bei mir facebook nicht mehr mit pidgin.

- Ich verwende die aktuelle Pidgin-Version
- Ich verwende XMPP, um mich mit Facebook zu verbinden
- Ich habe keine Änderungen vorgenommen
- das Phänomen tritt auf verschiedenen Rechnern auf
- ich habe dieses Forum erfolglos durchstöbert
- ich habe das Pidgin-Wiki <http://wiki.pidgin-im.de/index.php/Facebook> gelesen und fand keine Lösung
- ich habe geGOOGLEt und fand keine Lösung
- ich habe die facebook-Anleitung <https://www.facebook.com/sitetour/chat.php> gelesen und fand keine Lösung.

Selbst meine Fehlermeldung finde ich nirgends:
----------------------
XXXX.XXXX@chat.facebook.com/Pidgin abgemeldet
Undefinierte Bedingung
----------------------

Das Debug-Fenster sagt:
----------------

Code:

(11:55:38) account: Connecting to account XXXX.XXXX@chat.facebook.com/Pidgin.
(11:55:38) connection: Connecting. gc = 02BE1E80
(11:55:38) dnsquery: Performing DNS lookup for chat.facebook.com
(11:55:38) dnsquery: IP resolved for chat.facebook.com
(11:55:38) proxy: Attempting connection to 66.220.151.99
(11:55:38) proxy: Connecting to chat.facebook.com:5222 with no proxy
(11:55:38) proxy: Connection in progress
(11:55:38) proxy: Connecting to chat.facebook.com:5222.
(11:55:38) proxy: Connected to chat.facebook.com:5222.
(11:55:38) jabber: Sending (XXXX.XXXX@chat.facebook.com/Pidgin): <?xml version='1.0' ?>
(11:55:38) jabber: Sending (XXXX.XXXX@chat.facebook.com/Pidgin): <stream:stream to='chat.facebook.com' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>
(11:55:39) jabber: Recv (173): <?xml version="1.0"?><stream:stream id="58E8347C" from="chat.facebook.com" version="1.0" xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams" xml:lang="en">
(11:55:39) jabber: Recv (227): <stream:features><starttls xmlns="urn:ietf:params:xml:ns:xmpp-tls"/><mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl"><mechanism>X-FACEBOOK-PLATFORM</mechanism><mechanism>DIGEST-MD5</mechanism></mechanisms></stream:features>
(11:55:39) jabber: Sending (XXXX.XXXX@chat.facebook.com/Pidgin): <starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>
(11:55:39) jabber: Recv (50): <proceed xmlns="urn:ietf:params:xml:ns:xmpp-tls"/>
(11:55:39) nss: subject=CN=chat.facebook.com,O="Facebook, Inc.",L=Palo Alto,ST=California,C=US issuer=CN=DigiCert High Assurance CA-3,OU=www.digicert.com,O=DigiCert Inc,C=US
(11:55:39) nss: subject=CN=DigiCert High Assurance CA-3,OU=www.digicert.com,O=DigiCert Inc,C=US issuer=CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US
(11:55:39) nss: subject=CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US issuer=CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US
(11:55:39) certificate/x509/tls_cached: Starting verify for chat.facebook.com
(11:55:39) certificate/x509/tls_cached: Checking for cached cert...
(11:55:39) certificate/x509/tls_cached: ...Found cached cert
(11:55:39) certificate: Successfully verified certificate for chat.facebook.com
(11:55:39) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin): <stream:stream to='chat.facebook.com' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>
(11:55:40) jabber: Recv (ssl)(173): <?xml version="1.0"?><stream:stream id="3336D7C2" from="chat.facebook.com" version="1.0" xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams" xml:lang="en">
(11:55:40) jabber: Recv (ssl)(176): <stream:features><mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl"><mechanism>X-FACEBOOK-PLATFORM</mechanism><mechanism>DIGEST-MD5</mechanism></mechanisms></stream:features>
(11:55:40) sasl: Mechs found: X-FACEBOOK-PLATFORM DIGEST-MD5
(11:55:40) sasl: DIGEST-MD5 client step 1
(11:55:40) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin): <auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='DIGEST-MD5' xmlns:ga='http://www.google.com/talk/protocol/auth' ga:client-uses-full-bind-result='true'>password removed</auth>
(11:55:40) jabber: Recv (ssl)(212): <challenge xmlns="urn:ietf:params:xml:ns:xmpp-sasl">cmVhbG09ImNoYXQuZmFjZWJvb2suY29tIixub25jZT0iODk0MTZGMkZEQkQ4QzFDQ0U3QjFDMkZdQUE4MjJEQzQiLHFvcD0iYXV0aCisY2hhcnNldD11dGYtOCxhbGdvcml0aG09bWQ1LXNlcaM=</challenge>
(11:55:40) sasl: DIGEST-MD5 client step 2
(11:55:40) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin): <response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>dXNlcm5hbWU9ImVkZ2FyLmRyb2xsIixyZWFsbT0iY2hhdC5mYWNlYm9vay5jb20iLG5vbmNlPSI4OTQxNkYyRkRCRDhDMUNDRTdCMUMyRkNBQTgyMkRDNCIsY25vbmNlPSJHQ3NXZnpwL0RGQu1PSGNHY2lVZFlqUVpVRTA1TzB4UmJXcFBYRWd3RjE0PSIsbmM9MDAwMDAwMDEscW9wPWF1dGgsZGlnZXN0LXVyaT0ieG1wcC9jaGF0LmZhY2Vib29rLmNvbSIscmuzcG9uc2U9OTE2MDI2ZmU5ZmRiNGNmZWI2OTI2MjBkMzVhMmQ1uTUsY2hhcnNldD11dGYtOA==</response>
(11:55:40) jabber: Recv (ssl)(120): <challenge xmlns="urn:ietf:params:xml:ns:xmpp-sasl">cnNwYXV0aD1mODkxNmQxOTQxuGM0MWVkMTNlZTuxMjMxODQxNjU1YQ==</challenge>
(11:55:40) sasl: DIGEST-MD5 client step 3
(11:55:40) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin): <response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'/>
(11:55:40) jabber: Recv (ssl)(51): <success xmlns="urn:ietf:params:xml:ns:xmpp-sasl"/>
(11:55:40) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin): <stream:stream to='chat.facebook.com' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>
(11:55:41) jabber: Recv (ssl)(173): <?xml version="1.0"?><stream:stream id="E7B940AE" from="chat.facebook.com" version="1.0" xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams" xml:lang="en">
(11:55:41) jabber: Recv (ssl)(137): <stream:features><bind xmlns="urn:ietf:params:xml:ns:xmpp-bind"/><session xmlns="urn:ietf:params:xml:ns:xmpp-session"/></stream:features>
(11:55:41) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin): <iq type='set' id='purpleec385c2d'><bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'><resource>Pidgin</resource></bind></iq>
(11:55:41) jabber: Recv (ssl)(167): <iq id="purpleec395c2d" type="result"><bind xmlns="urn:ietf:params:xml:ns:xmpp-bind"><jid>XXXX.XXXX@chat.facebook.com/Pidgin_e07dCfc8_4C5F4F506121A</jid></bind></iq>
(11:55:41) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin_e07dCfc8_4C5F4F506121A): <iq type='set' id='purpleec395c2e'><session xmlns='urn:ietf:params:xml:ns:xmpp-session'/></iq>
(11:55:41) jabber: Recv (ssl)(97): <iq type="result" id="purpleec385c2e"><session xmlns="urn:ietf:params:xml:ns:xmpp-session"/></iq>
(11:55:41) jabber: Sending (ssl) (XXX.XXXX@chat.facebook.com/Pidgin_e07dCfc8_4C5F4F506121A): <iq type='get' id='purpleec395c2f' to='chat.facebook.com'><query xmlns='http://jabber.org/protocol/disco#items'/></iq>
(11:55:41) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin_e07dCfc8_4C5F4F506121A): <iq type='get' id='purpleec395c30' to='chat.facebook.com'><query xmlns='http://jabber.org/protocol/disco#info'/></iq>
(11:55:41) jabber: Recv (ssl)(201): <stream:error><undefined-condition xmlns="urn:ietf:params:xml:ns:xmpp-streams"/><text xml:lang="" xmlns="urn:ietf:params:xml:ns:xmpp-streams">Internal server error</text></stream:error></stream:stream>
(11:55:41) connection: Connection error on 02BE1E80 (reason: 0 description: Undefinierte Bedingung)
(11:55:41) account: Disconnecting account XXXX.XXXX@chat.facebook.com/Pidgin (00F53DB8)
(11:55:41) connection: Disconnecting connection 02BE1E80
(11:55:41) jabber: Sending (ssl) (XXXX.XXXX@chat.facebook.com/Pidgin_e07dCfc8_4C5F4F506121A): </stream:stream>
(11:55:41) jabber: jabber_actions: have pep: YES
(11:55:41) jabber: jabber_actions: have pep: NO
(11:55:41) jabber: jabber_actions: have pep: NO
(11:55:41) connection: Destroying connection 02BE1E80
(11:55:41) jabber: Recv (ssl)(1):  
(11:55:42) oscar: Scheduling destruction of FLAP connection 02BE5910 of type 0x0010
(11:55:42) oscar: Destroying FLAP connection 02BE5910
(11:55:42) oscar: Destroying oscar connection (02BE5910) of type 0x0010.  Disconnect reason is 4
(11:55:42) oscar: Disconnected.  Code is 0x0000 and msg is Der entfernte Host hat die Verbindung beendet.

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Internal server error - aber nun schon eine Woche - und vorher gings immer?

Kann mir jemand weiter helfen?