An Error 500 is not caused by the plugin but rather by an issue with your website’s hosting. It means that your server is blocking an action that the plugin is attempting to perform.
Check your server’s error_log file which should have more information about the error. Request the hosting provider to send you the error_log file/message from your server so we can see the details of the critical error. That will give us more details as to what exactly is failing on this server.
Since your hosting provider has access to the server logs, they are best equipped to diagnose and resolve the issue. The most effective way to address an Error 500 is to contact your hosting provider. They can review the server logs to identify the exact cause of the internal server error and provide a solution.