Hi

This is a users forum not Magix support.

You have not given enough information for us to help you.

What format / source are the video clip(s) on the timeline?

What format(s) are any audio clip(s) that has been added to the project?

What format are you trying to export to and what settings are you using?

Does the program crash at the same point in time during the export?

Come back with answers to these and then we may be able to help you.

John