Terrible judder and jittering playback on a Logo Sting

Hi all, I downloaded a logo sting, added my own logo. When previewing in the within After Effects it’s jittery. So I sent to Media Encoder and it keeps going into error (see further below). So then I rendered within AF and it’s still jittering and not smooth like the preview on Envato. I’ve never had this issue before. Even tried backing AF to previous version, also shut PC down too.

Accelerated Renderer Error

Unable to produce frame.

Writing with exporter: H.264
Writing to file: D:\SSS Logo Sting\Elegant Logo Reveal\After Effects\SSS Logo Sting Landscape_AME\Final Comp.mp4
Writing file type: H264
Around timecode: 00:00:00:01 - 00:00:01:03
Rendering at offset: 0.033 seconds
Component: H.264 of type Exporter
Selector: 9
Error code: -1609629695

Very much appreciate someone solving this issue as I really liked the template.
Thanks Tania