Good day,
Indeed, your swift install is wrong.
Is it a 0.9.5.xx release (Mandatory for XP 11.50)?
If your are in trouble, join the MacOS chanel, users and devs will help you.
http://swift-project.org/contact/
Aside notes: Your simHeaven_X_Europe is may be not correctly installed, or outdated.
Your Sam plugin (AOS) must be 2.07 or 2.10 for XP11.50.