500 internal error

Hi ,

i have installed the free virsion of opmanager it worked good for some time but now while oppning the sebclient it is showing the error as follows.

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, admin@india.adventnet.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

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Apache/2.0.47 (Win32) mod_jk/1.2.5 Server at 199.63.103.16 Port 80

i tried with the solution

1)Open the command prompt and go into /opmanager/bin

2) Execute opmanagerservice -r
This will remove the opmanager service completely.

3)Execute opmanagerservice -i
This will install the service again.

4)Restart the service

but the same thisng is happning

can any one please help me out to resove this issue!