It is not RasPBX.
It is a plain raspbian where I installed Asterisk/FreePBX following some guides (mainly this https://francoconidi.it/asterisk-freepbx-su-raspberry-pi-4-e-raspberry-pi-os-buster/), adapting the versions to Asterisk 20/FreePbx 16.
I see only sip logs also in the console.
I checked this:
Bug in Asterisk Logfiles Module ver 15.0.4
But it seems not the case.
Permissisons on folder/files seem ok:
I am a bit lost