When im trying to start Call of Chernobyl mod it says that Call of pripyat can't be found. While im starting settings same thing happens (But game works!). I installed Call of Misery mod and uninstalled it. Before that everything works fine. I can't COP because i have this game on other account. So i need to repair it.

I wonder if "Game installation not found" means that the information is missing or incorrect in your registry.

Call of Chernobyl requires a separate install folder from Call of Pripyat, and it also checks the registry for Call of Pripyat installation data when installed. If you installed Call of Chernobyl to the Call of Pripyat installation folder, that's not good.

If you installed CoM to the Call of Chernobyl installation folder, then uninstalled CoM, it might break the Call of Chernobyl installation, but that is just a guess.