Webhost: Fix typo in tracker.py

[ScipioWright]

What is this fixing or adding?

Disclaimer: I don't know what this does and I'm not about to go read through everything to figure out what it all does. All I know is that this is a very clear typo. If it's not, please feel free to close this.

How was this tested?

It wasn't. I don't even know what this file does. I think it's the multitracker?

If this makes graphical changes, please attach screenshots.

N/A