How to root Vivo Y83?

I somehow unlocked the bootloader of my **Vivo Y83 (vivo1802)**. Now, after flashing the Magisk-patched boot image, my phone goes on bootloop. And after flashing back the original boot.img, the phone comes back up. I've tried 1. Patched vbmeta in boot as there is no separate vbmeta.img in my firmware 2. Preserve force encryption I notice the magiskinit is not even called by kernel when trying to boot. I need a solution for it.