I am unable to enter page numbers in Footer

I am unable to enter page numbers in this version

Version: 7.3.7.2 / LibreOffice Community
Build ID: 30(Build:2)
CPU threads: 4; OS: Linux 6.2; UI render: default; VCL: gtk3
Locale: en-GB (en_GB.UTF-8); UI: en-GB
Ubuntu package version: 1:7.3.7-0ubuntu0.22.04.3
Calc: threaded

What method have you tried?
Can you enter another data in the footer?

Thanks, that was super fast of you.
I down loaded an earlier version 7.3 and opened it in safe mode. I have now been able to add page numbers to my letter.

Kind regards

Sanjay

Maybe, if not done yet, you must Reset to factory settings.