Error on logon

Hello ererybody

I am getting the following error while login.
Any idea what is this. I have installed rt2.0.15 on
redhat 8.0. ON the brower it says internal server


[Mon Oct 14 16:32:57 2002] [error] Can’t call method
"handle_request" on an undefined value at
/usr/local/rt/bin/ line 170.

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