Thanks for the screenshot.
To be able to give you possible solution we need to check and explore this error on our side firstly.
Please provide us with your Your Store Configuration file.
* can be saved in Preferences(F12) > Save current configuration
http://www.screencast.com/t/pEC6mQesC
You are welcome to send this file to contact@mag-manager.com or submit a ticket here
https://support.emagicone.com/submit_ticket
Important note: Please do not send this file here as it includes your personal database details!