The app uses an exploit that may cause the device to reboot or respring upon launching. This is normal; simply try opening it again.
Are you trying to or install a tweak ?
FilzaEscaped 12.x: Root Access Without Jailbreaking (iOS 12.0 - 12.4) Filza Escaped 12.x
Supports early iOS 12 versions, including A12 devices. The app uses an exploit that may cause
Later releases provided support for these versions, often marketed as FilzaEscaped 12.4. Installation Method Filza Escaped 12.x
This specific "12.x" version is designed only for iOS 12. Other versions of FilzaEscaped exist for iOS 14-16. If you'd like more specific information, let me know: Which iPhone model are you using?
Installed via platforms like Ignition, TweakBox, or Zeus.