I upgraded my Shaper Helixultimate site from Joomla 3.10 to the latest 4.x. Now I get this error on my main page (and about half the other main category pages):
Class 'JArrayHelper' not found
Help!
(I've switched to a different style for now in order to keep the site up).
My menu pages don't have that option to toggle redirects on/off. But that did inspire me to look under SYSTEM>MANAGE>REDIRECTS. I cleared all the outstanding dead redirects, then reloaded my homepage in another tab. The one expired URL that comes up whenever I load that page (which gives the error) is
templates/shaper_helixultimate/css/presets/{
I looked in my presets in the shaper helix setup, but I just have a generic out-of-the-box blue one chosen. Switching to another preset did nothing. But it made me wonder if that was connected to the problem.