Device encryption interrupted please reset your phone

I had kept no encryption password still when i restarted my phone it popped up with error that encryption interrupted and your device need a factory reset with a reset button. i pressed the reset button and it went to erasing screen and got stuck in a loop of restarting again to encryption screen with reset button . even tried hard reset but nothing seems to work. how to solve this and avoid this problem in future.

good help is appreciated

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