jQuery doesn't load in item view

Hi everyone,
I'm having a not-so-little problem with a component made with component creator. The extension is an apartment listing for a website, so I created a table for the apartments and a category and item view for them to be displayed on the frontend.
Fact is, everything works fine on the category view: items are listed correctly, even though urls are not that user friendly (but that's not the problem at hand). When I click on an item and get redirected to the single item view, though, I get some javascript errors. It looks like jQuery isn't loaded properly in this view.
Is this a known issue, or could you help me understand where the problem is?

Thank you in advance!

Danilo