Error. Failed to load PDF document

Hi.

This is a great plugin – thanks so much for developing and sharing it.

I’m getting the message :Error – Failed to Load PDF Document” whenever I visit a /pdf link. The /pdf-template link works fine. I’ve tried disabling all plugins and child themes and resetting permalinks but it did not help.

There is a reload button on the error message dialogue button. When the plugin is in a localhost environment this works and once the pdf is in the cache the message goes away.

However when I migrate the plugin to www, hitting the reload button just brings up the same error dialog box.

Thanks for your support.

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