If you want to keep TWRP and root, flash a disable DM-Verity zip.
The most reliable fix is to reinstall the official Android system using Download Requirements: Odin Flash Tool (latest version). Samsung USB Drivers installed on your PC. Stock Firmware for SM-G532F:
. It is often recommended to use a "4-file" (Binary) firmware (BL, AP, CP, and CSC) for a clean fix.
