problem with lan

i reinstalled cs, and now then i try to play in lan i get this error in console

Metamod version 1.19p31 Copyright (c) 2001-2006 Will Day
Patch: Metamod-P (mm-p) v31 Copyright (c) 2004-2007 Jussi Kivilinna
Metamod comes with ABSOLUTELY NO WARRANTY; for details type `meta gpl'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `meta gpl' for details.

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Game DLL version mismatch
DLL version is 140, engine version is 140
The game DLL for cstrike appears to be outdated, check for updates
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Host_Error:
any tips?

thx numb ;]