media encoding rendering failed multiple times

the error log says this :

Render Error

Render returned error.

Writing with exporter: H.264
Writing to file: /Users/userrr/Desktop/file8.mp4
Writing file type: H264
Around timecode: 00:00:44:05 - 00:00:44:13
Rendering at offset: 22.147 seconds
Component: H.264 of type Exporter
Selector: 9
Error code: -1609629695

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