@nekojonez Well, that’s gotten me halfway there; I’ve removed the Cyclone Slider error via the method you suggested above, and the site is back online. So thank you.
However, I still can’t login to the back end. This is the message I receive when I attempt to do so:
Parse error: syntax error, unexpected ‘<‘ in /homepages/32/d362250558/htdocs/wp-content/plugins/image-collections/includes/content-bldrs.php on line 143
Fatal error: Exception thrown without a stack frame in Unknown on line 0
Presumably another plugin is causing this error, but I can’t work out which. Any ideas?