Lucky Patcher broke my Google Play services

I have a OnePlus 6 running Android 9.0.2 rooted with Magisk, but no recovery. (I tried to install recovery before rooting it every way I could imagine, with no success.) I had Lucky Patcher installed with patches applied to Android and to the Play Store, and everything was working fine. I recently updated Android from 8.1 to 9.0.2 and the patches were removed. When I tried to patch it again, the play store disappeared and all the Google apps say that my device doesn't support Google Play Services. I tried reinstalling the Play Store both from Lucky Patcher (original and mod versions) and from APKMirror, but whenever I try to open the app, it just says "Google Play Store keeps stopping". And when I tried installing the Play Store as a system app with Lucky Patcher, it just wouldn't install. I tried installing Google Play services from APKMirror, but the app just wouldn't install. I even tried installing it using ADB, and I get this error: Failed to install Downloads/ps.apk: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE: Update to package com.google.android.gms doesn't support multi arch] **My question is, how can I get the Play Store and Google Play Services working again?**