random lines on clip

I made a clip on my laptop but my laptop is too bad to render it, so I used my friends laptop to render the clip and then these lines started to pop up. I didnt think much of it and rendered it but it came out the same way. Anyone have any ideas to fix it? The picture of whats showing up is attached, you can see the small line on it running through the text and also on one of the clips this X shows up. If anyone has any ideas to fix this please help.