If you are experiencing issues with the game crashing refusing to run and are using 120hz or 144hz these refresh rates maybe causing problems with the game.

Please do the following -

1. From the Firefly Launcher tick 'Show graphics settings on startup' click on Play and via the graphics panel change hz rate.

2. Right click on the desktop and select display settings, scroll down and select Display adaptor properties, click on the Monitor tab and select Screen refresh rate and and lower this to 60Hz.