After clean install everything works fine.
Thanks.
Edition:
After I rebooted 3 times my device the problem appeared other time, still get "Framework is installed but not activated " warning .
I had this same things happen to me when installing on an old Galaxy Tab A, here's a little it of BG:
-Tab A was official with Android N 7.1.1
- ODIN flashed TWRP 3.2.1-0 lineage relase from the 15.1 thread
-first, flashed magisk 20.3 on stock rom to make sure it was going to work on my base version
- I found a TW-based ROM (Tab A is Samsung after all) that was 7.1.1 but the WiFi didn't work and I wasn't interested in spending much time on a Nougat based ROM, so I immediately went back to TWRP and flashed LineageOS 16.0 Pie based ROM (on top of my 7.1 baseband/bootloader) after a full wipe, ofc, and everything went very nicely, flashed Magisk right behind it for root, and then went searching for a solution for Xposed...I have been pretty out of the loop since Marshmallow, so I was totally unfamiliar with the current state of Xposed and the methods currently being employed to use it, so
- installed riru-core 19.6
- installed EdXposed .4.5.1 YAHFA <- This produced the same issue, Installed but not active, so
- installed EdXposed .4.6.1 YAHFA <- This produced a bootloop that starts to load Android then loops back to TWRP
- installed EdXposed .4.5.1 YAHFA AGAIN <- This time I got a freeze at Samsung logo initially then after a hard reboot Android booted and the framework is activated and has been activated after each subsequent reboot since. WHY this is the case, I cannot begin to explain, but after initially NOT being activated, after dirty flashing to .4.6.1 and back, it is now activated.
- I now am able to download and install any modules I like without issue.
I don't know if something here will help, but this is the process I took to reach a working active state on .4.5.1-beta with Magisk 20.3 on the Pie version of LineageOS 16.0....
Hope something here help!
EDIT: Note that the device does NOT pass SafetyNet checks....it initially did when I first got .4.5.1 activated, but I think it may be the addition of riru-core that for some reason broke SafetyNet. Although I cannot confirm this.