update failed -1 | WordPress.org

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I have approx 100 sites running on the 20i platform. when I try to update a plugin, via the admin panel I get a ‘plugin failed -1’ error or using Manage WP ‘update unsuccessful’. This only seems to occur with sites where CMP Coming Soon is installed.

After the update, the site is unavailable for around 15 mins. It then either comes back (plugin not updated) OR is stuck in maintenance mode. By deleting the .maintenance file I can log in, but the plugin is not updated.

Uploading a plugin via FTP to update it works.

Just letting you know.

The page I need help with: [log in to see the link]

 

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