Engine Error: Unable to load surface prop file

[CSS-Finland]

My Counter-Strike Source Dedicated Server works fine two weeks, but now I start server it says errormessage "Unable to load surface prop file 'scripts/surfaceproperties.txt' (referenced by manifest file 'scripts/surfaceproperties_manifest.txt')" and crash. I try to update but problem doesn't lose.

What's the problem? Anybody can help?

[uzux]

save necessary data/db files and reinstall the admin mods.

post the results.