I was able to use my site, but suddenly I was not able to upload images using wordpress error Failed to write file to disk.
I disabled all plugins, still no go, when I was trying to update wordpress I got error
Downloading update from https://downloads.wordpress.org/release/wordpress-4.9.5-partial-4.zip
Download failed.: The checksum of the file (d41d8cd98f00b204e9800998ecf8427e) does not match the expected checksum value (ee13f2f4545217f80b8f7eb4e19dcac6).
I though may be the issue is with fike permission, so I chmod folder and files to 755, still no go.
i deleted htdocs folder and uninstall and reinstall wordpress again.
Still unable to update Wordpress, Plugins, Themes. Also unable to upload images