Can not login to admin panel after update from 11.0 to 11.5

[rainy1]

I am using CentOS 6.4
I cannot login to the admin page. Showing this message:
Error: Unable to log you on. An internal error occurred in the Single Sign-on authorization engine. Please try to log in later, and contact your hosting service provider if the problem persists.

Error log:
Doing restart of Parallels Installer...
2014-05-17 01:08:38: (server.c.1543) server stopped by UID = 0 PID = 10122
2014/05/17 01:15:04 [crit] 16495#0: *1 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "POST /plesk-billing/task-manager.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"
2014/05/17 01:15:11 [crit] 16495#0: *4 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: XXX.XXX.XXX.XXX, server: , request: "GET /admin/update/product/ HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "XXX.XXX.XXX.XXX:8443", referrer: "https://XXX.XXX.XXX.XXX:8443/smb/settings/tools"
2014/05/17 05:50:54 [error] 28563#0: *937 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: XXX.XXX.XXX.XXX, server: , request: "POST /relay HTTP/1.1", upstream: "fastcgi://127.0.0.1:19001", host: "XXX.XXX.XXX.XXX:8443", referrer: "https://XXX.XXX.XXX.XXX:8443/sso/ui"
2014/05/17 05:52:00 [crit] 2983#0: *1 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: XXX.XXX.XXX.XXX, server: , request: "POST /check-plesk.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"
2014/05/17 05:52:02 [crit] 2983#0: *3 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: XXX.XXX.XXX.XXX, server: , request: "POST /check-plesk.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"


I have tried this post:
http://forum.parallels.com/showthre...highlight=Single+Sign-on+authorization+engine

[root@ns4008757 ~]# /usr/share/plesk-billing/integration --command=repair-all
Customer & Business Manager is not installed yet.
[root@ns4008757 ~]# /usr/local/psa/bin/sso -g
SSO status: on
SSO server url: https://XXX.XXX.XXX.XXX:8443
SSO API version: sw:sso:idp:1_0
SSO Application ID: z9fabw14uesl6ccoz0wnpwk68eghgvs6ny7

After running this two lines, when i login to admin panel, it shows:
Can not extract SAML message.


Any Help?

 

[rainy1]

This has be fixed by the Parallels support team.
They have remove the "Customer and Business Manager" and it can be accessible now.