Search and Filter dont work after updates

-- url of the page with the problem -- : www.gamedude.com.au
-- Joomla version -- : 3.9.25.
-- PHP version -- : 7.4.3
-- Browser(s) name and version -- : all

Just wondering if anyone can point me in the right direction.
Recently I updated all Joomla and Hikashop updates that were available, some were nagging me about my PHP version as well so its all updated but now the search and filter functions are broke... They work the first time but anything entered after you get the "thinking" spinning icon then nothing is changed onscreen, the filter is also the same no matter what it does not change the screen display.
The backend search still works fine only frontend, nothing was changed other than applying the updates....

Go to the website I listed in the first post.
www.gamedude.com.au
In the search at the top type in "SSD" you will see a result..
Next search for something else like"gaming" (it does not matter the text really this is an example).
You can clearly see that the search no longer works, the only way to fix it is to click "HOME" or reload the page but it again only searches once before breaking.
This website was all working perfectly fine before applying all the updates which I am not sure what module is responsible for the search and filters or if its the upgrade to PHP which I was being nagged to do by the "extensions Update" on the backend.
Again I will mention that the search and filter works perfectly fine still on the backend,