Code:
This mod will only run on TS SE 5.xx Series Trackers!
If the problem has a solution . Help!
It's looking for a file, I forgot which one, and it's checking the version within that file, with the 5.4 version this has been changed to 'WDW Tracker' which prevents mods like that from working, that's your issue, unless someone know which file this is, you don't have a prayer of installing that mod.
EDIT
Some init.php file ;)