Error after upgrade

Hello,

I walked through the upgrade to RT 3.8.10 this week, and after upgrading
I get an error in my apache error log:

[error] [client 10.128.10.143] FastCGI: server
"/opt/rt3/bin/mason_handler.fcgi" stderr: Subroutine _Init redefined at
/opt/rt3/lib/RT/User.pm line 77

I’m using AT, and External Auth, but no other extensions.

Is this error anything to worry about going before going to production?

Thank you for your time,

-Eric Bergstrom

This electronic communication and any attachments may contain confidential and proprietary
information of DigitalGlobe, Inc. If you are not the intended recipient, or an agent or employee
responsible for delivering this communication to the intended recipient, or if you have received
this communication in error, please do not print, copy, retransmit, disseminate or
otherwise use the information. Please indicate to the sender that you have received this
communication in error, and delete the copy you received. DigitalGlobe reserves the
right to monitor any electronic communication sent or received by its employees, agents
or representatives.