one thing disturb me first, magisk.apk is the app u have to install on your android (install via TWRP or directly on your phone) AND
rename this magisk.apk to magisk.zip => installation from TWRP only to install magisk on your phone system.
this second step is crucial
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
via TWRP
(on every rom update u have to flash the new rom and flasg magisk.zip
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
)