Error message: "This file is part of Plesk distribution..." accessing Plesk.

[jpruiz]

Hello all. I am running Plesk for Linux, version 9.5.2 for Linux on a CentOS 5.5 server. It was running fine until a few days ago that it doesn't work anymore. If you try to connect to the Plesk web interface, you get an error message:
This file is part of Plesk distribution. It cannot be run outside of Plesk environment.
I have seen some posts with this error message, but they are not clear about exactly what to do. Also, the error message doesn't specify what file is causing the problem. I have seen that this can be caused by a failed update, but we didn't do anything. Unless it has been some kind of automatic upgrade, we did not do any upgrade manually.
Can somebody help me with this?
Regards.

 

[IgorG]

Have you tried to troubleshoot it with this article at least - http://kb.parallels.com/111283 ?
Any related error logs? What about restart Plesk service?

 

[jpruiz]

Hi Igor. Thanks for your help. I already restarted the Plesk service and also restarted the server and none of these restarts fixed the problem.
As for troubleshooting, I looked at the logs and I have only found this error message in /var/log/sw-cp-server/error_log :

2013-04-09 15:18:34: (connections.c.299) SSL: 1 error:1407609C:SSL routines:SSL23_GET_CLIENT_HELLO:http request

This error appears often. It is always the same message but the error number changes. I don't know if this is related though. SSL is working fine, as I get to connect to the web page, the only thing is that when you get to the web page, you get the error message that I stated before.

 

[VittorioV]

Same problem here, did you find a solution?

 

[jpruiz]

I opened a support case with paid support. They connected to my network server and solved it themselves. They said some packages were corrupted and they had to reinstall them, but I don't know which ones.