Can't install directly in system on HUAWEI devices

[cnwhhaha]

Device:HUAWEI P30
Android version:13
Magisk version name:27000
Magisk version code:27000

I use twrp，flash the systemmagisk.zip on huawei p30,because this phone don't have the boot.img. I don't want to patch recovery because it will cause other problems.but when I use twrp to flash it,it says:updater 过程结束 错误2 after 'construction environment'。How can I repair it?