Can you run Gunz.exe? (not the launcher)
Other possible things to do (see two links below);
- Check hard disc partition
- Reinstall directX
- Install/repair .NET Framework (4.6 is latest)
- Reinstall all Microsoft Visual C++ runtime packages
http://freewisdoms.com/how-to-fix-0x...ication-error/
http://freewisdoms.com/how-to-fix-0x...ation-error/4/