Hello Leon!
You can speak Spanish here if you prefer, I do not but I will find a way to translate what you write here :)
We are thankful Guinxu took some time helping us, it was very nice of him.
Can you give us a bit more details concerning your error?
You have a release note heirein above (it explains how to install the game) in the links to help you.
The game does not run on Mac and on 32-bits operating system, you might want to check.
You can use a Virtual Machine running Windows 7 or a more recent version in 64-bits OS if you can, and you will be able to play SYMPHONIA!
Cheers,