XML error after API commands executed in text formula button

Unfortunately Mark we are using buttons that change names, actions, colors, ability to place buttons anywhere the user wants without our QB team re-coding the buttons and give the end users that extra style that they want. Our business needs require all of this and URL buttons don't offer that. I did only put a rough code and at some point I could put a cleaner code if needed or you could contact me for a training session to help you understand this better.