Site settings blank on OJS 3.2.1-2

I have just upgraded to the latest version of OJS (3.2.1-2). In the administration backend I cannot see some of the site settings. If I see what’s going on in the browser console I see that there’s a series of JQuery errors generated by build.js (TypeError: this.fields is undefined and TypeError: this.pages is undefined). I have already cleared the data cache and the template cache, and opened the page from a private-mode browser session.

ojs_bug

The site setup - settings and information, and appearance theme - setup, are blank with a spinning wheel ‘Loading’ on top of them.

What can the issue be?

This was solved by wiping the database and reinstalling the website