Cannot update plugins or wordpress - authenticity could not be verified, no signature found

by machump   Last Updated September 11, 2019 17:08 PM

For some reason, out of the blue I am unable to update wordpress (to 5.2.3) or any plugins.

They each return a message like:

Downloading update from https://downloads.wordpress.org/release/wordpress-5.2.3-partial-2.zip…

The authenticity of wordpress-5.2.3-partial-2.zip could not be verified as no signature was found.

Unpacking the update…

Could not create directory.

Installation Failed

The url of the message differs depending on the plugin I am trying to update. How can I work around this? I am trying to update through the dashboard. Thanks!

I have enabled multisite



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