Hi, Lukas.

I can see the issue. There is an error in the syntax, we had this happen with WP Crontrol, 

for some reason it 'prefers' to have single quotes rather than double quotes inside the file_get_contents brackets, so for example like this :

file_get_contents('https://www.yourWebsite.com/wp-admin/admin-ajax.php?action=wpamelia_api&call=/notifications/scheduled/send');

Of course, just edit the URL part inside the quotes for your site that you found in the Amelia Notifications,

and it should work.

Let us know if that fixes the Syntax error.

If not, we can remotely take a look.

Please provide me a temporary WP-admin (administrator) user for your site where this happens, so we could log in and take a look ‘from the inside’ as that’s the most efficient way to see and resolve the issue. 

We do not interfere with any data or anything else except for the plugin (in case that’s a production version of the site), and of course, we do not provide login data to third parties. 

You can write credentials here just check PRIVATE Reply so nobody can see them except us.