Unfortunately, the link you added to your post gives an error when trying to follow it. Assuming it is a screenshot, please add it directly to your post by clicking the up-arrow in the blue circle and navigating to wherever the image is saved on your computer.
Also, assuming this problem is actually connected with your installation of Simplitec Power Suite, this is not necessarily connected with Movie Edit Pro, or it may indicate that something (e.g. your firewall or antivirus) is blocking the needed connection between your computer and the Magix servers.
If so the error message is coming from the Update Notifier which needs to connect to the Internet to check for updates for the Magix program(s) you have installed.
If the computer is connected to the Internet check your Antivirus/Firewall is not blocking Update Notifier from connect to the Internet. How you do this will depend on the AV you are using.
Magix are aware of an issue with this and hopefully working on a fix, the message can be safely ignored as it does not affect the program.