Password issue

[AntoK]

My OS is Kubuntu 22.04.5; I am listed as 'administrator.
My password is accepted at start-up/updates etc.
If I try to install any new software/app from KONSOLE Terminal/Interpretor using :- sudo apt (package name), I cannot enter my password at the 'user password' prompt!
The keyboard is unresponsive appart from the ENTRY key.
I hope someone can suggest a reason for this issue? Please keep it simple : I am not a GEEK!
Tony

[Snowhog]

The password doesn't show when you type it in the konsole; you don't see anything. Type it in and press Enter.