Unhandled exception occurred

I was playing the other day as my PC suddenly crashed and blue screen appeared on the screen. After a reboot I was not able to launch Aviatife client. Error message popped up saying: Unhandled exception occurred in the application.

I’ve tried some ways to fix it.
*Deleted client and loaded new
*Turning off firewall
*Updating .Net Framework
*Run disks check for corrupt files or systems
No results. Any help appreciated.