Thanks for all the responses guys. I raised a support ticket with Siteground and there’s now an updated version of their plugin available which fixes the problem.

HI Nikko
Sorry about that. I forgot that I’d put an IP ban in my .htaccess for all IPs except my own – I’ve removed it now. The site is running PHP 7.1 but the option for 7.1.7 isn’t available for me.

Apologies, I thought i had included it

Hi Victoria
Thanks for your quick reply. Sorry it’s taken me a while to respond as I was away for a few days. I had a look at the file and have picked line 510 which is:
$f = preg_replace("'(?<![a-zA-Z0-9_\$])for\neach\('", 'for each(', $f);
I understand Enfold is compatible with PHP7 so I don’t understand why it’s throwing this error. Could it be because the original template I downloaded and used was one of your older demos/designs (Construction demo)?