Our web server hard disk went full overnight and all our sites crashed. We increased hard disk size and then sites were working okay.
Now we found out that we are unable to update plugins automatically from the plugins.php page. We are getting the following error:
Update Failed: The package could not be installed. PCLZIP_ERR_MISSING_FILE (-4) : Missing archive file ‘/tmp/woocommerce-customer-order-xml-export-suite-Wa6DIQ.tmp’
See also screenshot: http://imgur.com/a/9969E
What do we need to do to rectify this?
Read more here: Error when trying to update WordPress plugins