Here are a few options for your post, depending on where you're sharing it. Since "Evil Operator" is a classic prank app that connects two people in a phone call while making them think the other called them, a "fixed" version usually implies it's working on newer Android versions. Option 1: The "Back in Action" (Best for Forums/Reddit)
If you see the "App Not Installed" error, your system might be holding onto a "ghost" version of the app. Navigate to Show System Apps Package Installer and select Clear Cache Clear Data 3. Use a Compatibility "Fixed" APK evil operator apk fixed