This specific error means that the plugin no longer has access to the Cloud folder the module is pointing to. This can happen for a number of reasons.
Causes and Solutions
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Cause: The (original) Cloud account is no longer associated with the plugin
If the cloud account the module is pointing to is no longer linked with the plugin, or has no correct authorization, the module will fail to load
Solution: Go to the main plugin settings page and relink your cloud account. - Cause: The folder has been removed or replaced on your Cloud account.
If the module is pointing to a folder that is no longer accessible by the plugin, the module will fail to load.
Solution: Add a new module to your page with the same configuration.
(If the new module does load, you can check the difference in the raw shortcode for both modules) - Cause: There is a licensing issue with the plugin
If there is a licensing issue with the plugin, the modules on the Front-End of the site will no longer be displayed.
Solution: Go to the main plugin settings page and check the license details.