IT'S FIXED! SORRY!
I apologize to the few who bought the application between yesterday and today. I had introduced a major bug in update 1.3.2 without realizing.
That has now been fixed and everything should start up normally.
ːsteamfacepalmː
Edit :
If you are still getting an error when you launch, it might be that your config file is corrupted beyond repair.
You will have to go here :
C:\Users[Username]\AppData\Roaming\Senerio\Quixer and delete config.json.
It should be fine after that. If not, make sure you get in touch with me.