Arkadaşlar sitemap xml hatası alıyorum denemediğim yol kalmadı hala

There was a problem writing your sitemap file. Make sure the file exists and is writable. Learn more
There was a problem writing your zipped sitemap file. Make sure the file exists and is writable. Learn more

diye hata alıyorum sebebi nedir bilen varmı acaba? Chmod değerleri 666 - 777 hepsi denendi