Sounds like the game can't find a required file. Try these quick fixes (Windows):
If you're hitting the "EXE_CANNOT_FIND_ZONE" error while trying to play Call of Duty: Black Ops call of duty black ops error exe cannot find-zone
Title: Fix: โEXE Cannot Find Zoneโ Error in Call of Duty: Black Ops Sounds like the game can't find a required file
Section 2: Graphics Driver Updates
Fix Localization Files: A common cause is a missing or mismatched localization.txt file. Ensure this file is present in your game's root directory. Some users have resolved this by replacing it with a fresh English version of the file. If you're playing on Steam, you can verify
If these steps fail, you may need to perform a full reinstall of the game, ensuring that no files are moved or altered during the installation process.