[Renate]

You probably Magisk'ed a boot image that was not the same as the boot image that was actually on your device. You should always pull your current boot image off your device with EDL (if you can).

You can try doing an update to the latest version using recovery.
Is your problem getting to recovery?
You can flash this to the misc partition with EDL and it will go to recovery.
Be aware that if you have some problem with the recovery it will keep going back there until you clear misc.