Nissan Pathfinder Whining Noise While Accelerating, what is causing it?

I wish I already have a RUclips channel when I did this repair to provide you guys with complete details of this repair, but these few pictures will give you an idea if you have the same problem.
2005-2015 Nissan Frontier, Pathfinder, Xterra, Suzuki Equator 2.5L 2.4L 4.0L
Timing chain kit;
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[@szetongng9663]

Thanks so much your repair video.