5 - This WordPress installation is infected with a malware variant of WP Missed Schedule: Activation Stopped!

Uninstall all not original or forked versions of this plugin and retry: read more on the cause of infection


This is because you used, or have used, an unpublished version of this plugin, and have another similar plugin installed and activated, or you have installed an unauthorized forked version, or have installed a copy of this plugin that does not respect the trademark, and assigning the license to the authors who created it.


It may also happen that you did not perform the correct uninstallation procedure of the previous version, and the correct installation of the latest current version, or have another similar plugin activated.

The correct procedure to use is only this:

- Deactivate all similar plugins that have previously installed and activated.

- Decide if you need to uninstall all similar plugins to resolve the issue, if this message persists.

- Clean manually the options table if the similar plugins not cleaning your options data automatically.

- Deactivate the old version, or the version to be need to update, of plugin WP Missed Schedule.

- Flushing cache, and wait for the necessary time.

- Install, or copy manually via FTP, the new version of plugin WP Missed Schedule.

- Activate the new version of plugin WP Missed Schedule.

Overwrite an old version of this plugin directly via FTP, or directly overwrite a version to upgrade, it may also be the cause of this type of error.

Remember that this plugin does not work properly if installed in the mu-plugin directory!