I use a rooted "Xiaomi Poco X3 NFC".

MIUI version: Global 12.0.7
Android 10 Stock (QKQ1.200512.002)
Recovery: OrangeFox

Magisk: 21.4 (21400)
inclusive:
- Busybox for Android NDK 1.31.1 from osm0sis
- Patches to Android (Lucky Patcher Module) 1.0 from Chelpus

Lucky Patcher 9.2.9

Until recently, everything ran like clockwork for several months, all Android patches and all app patches.
Since a few weeks ago, a system update was suggested to me and since I rooted my phone for the first time, I just tried to install it - of course without success.
For a few days, however, in addition to this, updates for system apps were suggested to me again and again, which was annoying, so I just tried it again (to install everything at the same time).
The Hadny restarted - and suddenly everything was installed.
After all apps lacked root rights and a root check showed a "faulty" root share, I first thought everything had been overwritten.
But that was not the case, only the Maigisk app had been uninstalled, OrangeFox was still there and so I simply reinstalled Magisk via the recovery.

But since all this Luckypatcher does not work anymore. I have again released all possible permissions, but am now even more perplexed, because at first everything worked without problems, without me having to make a big effort - I don't know where to start.

I googled for a long time, to install the xposed-framework did not work (YAHFA without success, Sandhook installation incorrect) - after the Anletiung on this website:
https://pakcash.net/how-to-install-xposed-framework-on-any-android-10-edxposed/
But I mean, I didn't have to before, pretty depressing so.

I would also like to create logs, but I can only create the one from core-libart.jar, the other two get an error message.
Should I upload the first ones somewhere here or just send them to the mail address?
I got so used to Lucky Patcher and don't want to use something else.

Saving apps in a modified version and including them with "Uninstall - Install" works - but is out of the question for me in the long run, as it is too cumbersome for me.  
But knowing that might be useful - obviously Lucky Patcher is not allowed to perform certain actions directly as usual - and that despite having all permissions and even root permission.

I like to try a lot of things for you guys, but please help me somehow, I really want to get LP running normally again!!