To enable hyperlinked citations in Zotero, you need to follow these steps:

Make sure you have installed the Zotero connector for your web browser and the word processor integration for your preferred word processor.

Add your bibliographic citations to your Zotero library.

Insert the citations into your document using the Zotero plugin for your word processor. When you insert citations, make sure the "Generate bibliography from citations" option is checked.

Once you have inserted your citations, you can update them to include hyperlinks by right-clicking on a citation in your document and selecting "Update Citations and Bibliography".

If you have followed these steps and are still unable to enable hyperlinked citations, you can try checking the Zotero settings to ensure that the "Quick Copy" feature is enabled. To do this, go to Preferences > Export, select the "Quick Copy" tab, and make sure that the format is set to "Rich Text" and that the "Automatically generate bibliography" and "Copy links to document notes" options are checked.