[BUG] Doesn't work in WordPress! How to make it work?

[Jo]

Good afternoon! I can not add this plugin to wordpress, it gives an error.
Yes, there was a similar thread where the answer was given:
#2353

Quote:

"Chosen isn't a Wordpress plugin, it's a jQuery or Prototype plugin. You'll likely need to include the code in your theme directory in order to use it in your pages."

Where can I find step-by-step instructions on how to connect the Сhosen to WordPress?

I need this plugin in order to create a multifunctional filter plugin on my site using Search & Filter Pro.
Here is the documentation for search & filter pro, which says it can work together:
https://searchandfilter.com/documentation/features/

But I have been unable to find any information for more than 5 hours.
I decided to write here, I hope they can help me here.
Thanks in advance!