catalina preference security privacy

Currently I have an iMac 10.15.7 with the problem “unable to open the “security and privacy” preference tab”

I summarize below the various tests that were undertaken.

When I try to modify my system preferences and more specifically those concerning security and confidentiality.

I get the message: “Could not load Security & Privacy preference”.

However, from the command line:

:; tccutil reset All

Successfully reset All

I remove file :  ~/Library/Preferences/com.apple.systempreferences.plist

I used SOS on the 2 partitions (system and data) of my disk, I used onyx. I reloaded Catalina.

I still get the same message “Could not load Security & Privacy preference pane. »

Following your advice, on my iMac, I created a new 'test' administrator and logged in with this new account. The problem persists.

Then, in recovery mode,

 rm /Volumes/Macintosh\ HD/Library/Application\ Support/com.apple.TCC/TCC.db 

and reboot

The problem persists

Then :

sudo diskutil resetUserPermissions / `id -u`

[...] 

Ready to reset user permissions on disk2s5 Interne

Started verify/repair permissions on disk2s5 Interne

User permissions have been reset

Finished verify/repair permissions on disk2s5 Interne

[~]:; tccutil reset All

Successfully reset All

Then :

 rm /Library/Preferences/com.apple.security.plist

 rm /Library/Preferences/com.apple.security.revocation.plist

Insufficient, The problem persists

Finally,

I wiped and deleted the internal drive then reinstalled Catalina then migrated from Time Machine.

Without success. The problem persists

Is there a command from the terminal, even in secure mode; if necessary; to restore the possibility

to change security and privacy preferences?

Or another workaround ?

Thank you in advance for your help during this Advent season 😔