Brosix for Linux is a 32-bit application. To run it on a 64-bit Linux you should install 32-bit compatibility libraries.
The command that must be run first is:
sudo apt-get update
Once that action is completed (this MUST be done first), then run this command:
sudo apt-get install ia32-libs
This can take several minutes to complete. Once it is completed, you can then run Brosix and it should run without problems.
In some cases these commands may not always work. Then run this command:
sudo apt-get install ia32-libs-multiarch