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?
-------------------------------------------------------------
David R. B.
   / @davidrb  
Black Plasma Studios
   / arbiter617  
AfterInfinity Music
   / @afterinfinitymusic  
Songs of War OST Extended - Voltaris
   • Songs of War OST Extended - Voltaris  
Songs of War: Cancellation Announcement
   • Видео  
Songs of War Asset Pack! (FREE DOWNLOAD)
   • Видео  
SOW Asset Pack Blender 2.8 (FREE DOWNLOAD)
   • Видео  
Songs of War: Episode 1 (Serial Animasi Minecraft)
   • Songs of War: Episode 1 (Minecraft Animati...  
Sheep It Render Farm
https://www.sheepit-renderfarm.com/in...
modeling a time portal in blender 2.8
   • modeling a time portal in blender 2.8  
texturing a sci fi portal in blender 2 8
   • texturing a sci fi portal in blender 2 8  
"Footsteps, Snow, A.wav" by InspectorJ (www.jshaw.co.uk) of Freesound.org
https://freesound.org/people/Inspecto...
-------------------------------------------------------------
Software:
Blender 2.83.1
https://www.blender.org/
Hitfilm Express 14
https://fxhome.com/hitfilm-express

-------------------------------------------------------------
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.