Glad to hear that this thread does not have ANYTHING to do with this thread right here:
https://gfy.com/showthread.php?t=1091734
In which Killswitch, and rightly so, points out that you apparently out people and their ranking keywords to some unknown dudes on a messageboard. That is a very lousy service being provided. Even the thought of you doing it, should cause each and everyone to proceed with great caution and never use any of your services.
Killswitch has done a fine little piece of code, which he generously enough gives out for free. If you can't make a simple extension run properly you must be having very poor handling skills. I downloaded it, added it and it works just fine. If you had problems with your first computer, I can understand testing with a second. But one must be an enormous idiot to wreck it on three computers and especially not taking great care on the third (when two installations have already gone wrong) when installing it.
Question is even, why try to install on a third if the two others went wrong and you are sure you did everything right? The only reason to try a third time, would be if you felt/knew that you yourself did something wrong the first two times.
Post proof of his script causing troubles, we are very much amused and we are waiting!