I had a look at your article https://www.akeebabackup.com/documentation/warnings/q101.html and am rather worried that it says the backup will not work if the message is displayed.
I contacted my host as suggested but they were not able to give support because the error message does not display the full path and could not tell which folders are restricted. They told me it was just a warning message and the back is successful but I don't want to take a chance.
my configuration.php shows it is unwritable and the permission is set for 444. Is this correct?
Support will be greatly appreciated.