bootstrap-slider.js by seiyria not working in wordpress

I took a look at your page. The code is a mess, full of html errors. In your question’s code above you’re queuing and dequeuing the script file four times, so it ends up once in the page header. In the page body you are also hardloading it four times.

The script that you include halfway the body then does not take into account that WordPress loads jquery in nonconflict mode, meaning you cannot use the $ selector. The latter may be the main reason why your slider doesn’t work, but I suggest you also smooth out the rest of your code.