Thank you Oleg, I added empty file ror.xml.gz (666), so it generates the file but with errors.
You can see it here:
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Content Encoding Error
The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression.
Parsing error, line 1, column 1
And there is no ror file in Data folder, is it normal?
All other .gz files in root directory are fine.