Something on your PC is preventing Infinity to launch properly.
Sometimes just disabling any AV software doesn’t help much, so completely turn OFF and uninstall any Antivirus, as well as firewall, or better yet, create an exception for the entire INFINITY folder.
Make sure Windows DEFENDER real-time protection is also disabled. I would also make sure .NET Framework, and VC++ redistributable packages are properly installed/updated, and configured on your system.
Use any REG cleaner tool, if need be. Make sure there are no missing/corrupt registry entries.
Try to re-download and reinstall the INFINITY tool from scratch. Do a CLEAN reinstall of the INFINITY tool. If using Windows 10 OS, kindly disable automatic updates.
FORMAT your copy of Windows, if possible. Do you have this file on your system:
C:\Users\YOUR_USERNAME\AppData\Local\Daring Development\Infinity\Storage\Infinity.sdf