I've replaced chain and dropout hanger. The rear derailleur is Shimano Claris. When I'm turning pedals chain (Shimano hg-71) is touching small plate (marked with red arrow) between high (closer to high) and low pulleys with loud metal sound.
The derailleur works in general and I'm able to switch between all 8 gears.
How I can solve this issue or is it broken?
There are also video, where it is obvious in action https://drive.google.com/file/d/1aEuVgdymEKdN0EWf3sq25GhJhyD7SK0k/view?usp=sharing
UPD: Solved - I've bought new derailleur(claris ~20 eur) and I was able to configure it very easily. The problem in old one is really in broken inner plate geometry. This probably happend during my accident. Plate is bent in X axis towards towards the chain, which makes it really hard to bent back.