If Magisk fails (which is common on KitKat), consider these older rooting methods better suited for that era:
This was the final major release to officially support Android 4.4 KitKat. download magisk manager for android 4.4.2
Search XDA Developers forum for “Magisk v20.4 download.” Trusted forum moderators often host mirrors. If Magisk fails (which is common on KitKat),