Can't get client to run

[shoaf54]

I've downloaded the .jar file and I have Java version 8 isntalled as instructed. However when I click on the .jar file that I downloaded it just opens with WinRar and shows the files. I can't get the client to run for the life of me. What am I doing wrong?

[Mio]

Run this

 

https://johann.loefflmann.net/downloads/jarfix.exe