Good day, conflicts 1.7.2 / jquery.min.js with jquery-3.3.1.slim.min.JS library from Bootstrap 4. The point is that autocomplete.js is used for search, and it works only  with 1.7.2 / jquery.min.js, and Bootstrap 4 needs 3.3.1.slim.min.js, I tried jQuery.noConflict (), but  did not work, maybe someone will tell me how to solve this problem.

the link to the site

I will be very grateful