There is an easy way to fix this issue. Try creating a shortcut of the Requiem file and place it on your desktop. Right click it then choose Properties. In the target field make sure it looks like this:
C:\Program Files (x86)\Gravity\Requiem\Requiem\system\Requiem.exe" ***.***.***.*** -FromLauncher 0/0 0 0 1 3 0
The path should be replaced with the one that resembles the actual installation of the file (Requiem.exe). Instead of the ... you need to input the IP of the server. This cam be obtain by contacting the game host. Once this process is completed, the game will update and then you can play it.