problem after upgrade to squeeze on my server

["mike cutie and maia" <mstopka@centurytel.net>]

Hi I get this message when I restarted after an upgrade to squeeze any Ideas how to fix it?

 

Apt-get: /usr/local/lib/libz.so.1: no bersion information available (required by /usr/lib/libapt-pkg,so.4.10)