Deathsinger | Songs Of War Fan Animations

When I'm done rendering this animation, it has some weird flickering. It looks like this:
https://streamable.com/plpajc
Is there any way I could fix this?
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David R. B.
https://www.youtube.com/channel/UC49_yx5p2MNa030ZYfLpm3Q
Black Plasma Studios
https://www.youtube.com/user/Arbiter617
AfterInfinity Music
https://www.youtube.com/channel/UCWBolLfFuQCUBRyvVrTLQ-A
Songs of War OST Extended - Voltaris
https://www.youtube.com/watch?v=GR75cMztCbM
Songs of War: Cancellation Announcement
https://www.youtube.com/watch?v=LIjt_q3VlGE&t=338s
Songs of War Asset Pack! (FREE DOWNLOAD)
https://www.youtube.com/watch?v=w392ed0VFaY&t=224s
SOW Asset Pack Blender 2.8 (FREE DOWNLOAD)
https://www.youtube.com/watch?v=o5I3N1d2q9A
Songs of War: Episode 1 (Serial Animasi Minecraft)
https://www.youtube.com/watch?v=5D4gzZNOwU4
Sheep It Render Farm
https://www.sheepit-renderfarm.com/index.php
modeling a time portal in blender 2.8
https://www.youtube.com/watch?v=Y21OGXuzdZU&t=18s
texturing a sci fi portal in blender 2 8
https://www.youtube.com/watch?v=8pXtnRo8ro0
"Footsteps, Snow, A.wav" by InspectorJ (www.jshaw.co.uk) of Freesound.org
https://freesound.org/people/InspectorJ/sounds/397946/
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Software:
Blender 2.83.1
https://www.blender.org/
Hitfilm Express 14
https://fxhome.com/hitfilm-express

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And, yeah, I know. The sound isn't that good and the depth of field could use some work. It will be helpful if You could give me feedback.

And, go watch Songs Of War, it's an amazing series.

Видео Deathsinger | Songs Of War Fan Animations канала Fupper