Had a new user in training trying to learn Gantry 5 from tutorial on my live website and now I get the error "Error Call to undefined method JModuleHelper::getModuleList()" along with a page full of other errors... ... I see references that JModuleHelper is now just ModuleHelper in Joomla 3.8 or 3.9 (I'm running 3.9.19) but I do not know how to fix what he has done....
The website is OKElks.org
Apparently he downloaded & maybe installed Gantry 5, Helium and who knows what else from this link
gantry.org/downloads
Before he goofed it - it was working perfectly with the latest Joomla version and latest Gantry 5 updates. But now it crashes with the error shown...... and to top it off - my Akeeba backups now show OBSOLETE and I don't have anything newer than 2 years old saved remotely.
My Administrator side is fully functional so I have to believe it should be a simple fix to get the web facing side fixed too. Thank you in advance for all assistance
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