I made 2-3 amendments to this page (https://e-voice.org.uk/highburygroup/documents/) this morning and on the last amendment (when hitting Save and Publish), I received the error "We had a problem with your input: Item not found).
Now, when trying to access that link above, I'm receiving a 503 Error Backend fetch failed. When going on the main site (https://e-voice.org.uk/highburygroup/), the 'Documents' tab on the menu has now completed disappeared.
When trying to access via Content Management, the 'Documents' link is still available on the left-hand side in the Site Map, but when clicking on it, I get the same "We had a problem with your input: Item not found" error instead of the ability to edit that page.
Any help would be much appreciated. There was a lot on this page and it would take me many hours to re-publish it all!
Thanks so much.
This has now been resolved. Many thanks.