BUG REPORT Blank Error message when saving changes in CMS

[Carlos]

Sorry for the delay in reply. That is correct and the folder backup within the data folder does not exist however I do have a backup folder in the base directory, and pages in their I believe were ones backed up from 24th march 2016

Yes, that's correct, I was mistaken. It's /backups/pages (not data/backups as I said)
Then, perhaps there's some problem with that folder's permissions.