May be I cant explain perfectly, not sure why you can't get what I mean.
I already wrote this folders are 777 and all subfolders.
folder cache/settings/ has files inside and they are update automatically everyday.
"Error: Unable to access or write to cache directory /var/www/username/data/www/sitename.com/system/cache/ Cache feature was disabled. Check permissions on directory and enable setting back."
which shows when I clean cache for "Configuration" - System and store configurations
Set 0777 for system/cache/ directory and subdirectories
The QUESTION IS THE SAME:
Does anyone knows, why just [cache enabled] "ON" doesn't want to be saved? For all other settings, changes are saving correctly...
folders are 777 and subfolders too.