Can't locate RT/Action/

I have RT 2.0.14 running on RedHat Linux 7.2. Noticed the following error
lately in the RT log file (/tmp/rt.log0) when i reply or comment to an open
call. There are no errors logged in the maillog.

[Fri Sep 5 20:57:18 2002] [error]: Can’t locate RT/Action/ in @INC
(@INC contains…)

I don’t see a in /lib/RT/Action folder. Is this
module required? If so where can i find it?

Any help / suggestion in this regard will be appreciated.