problem with download about audacity 2.4.2

I have downloaded Audacity 2.4.2 but i don’t recorder. Here is the message when i want to save:
error when opening the recording device: error code : 0 success
I don’t understand nothing! Can you help me please!
Sorry for my bad English!

I’m not sure what you are trying to say.
What is your primary language?

What are you trying to do with Audacity?

Sorry but English isn’t my primary language.

I am trying to record my work and it’s impossible! When I put on the red button, nothing.

What are you trying to record from? A microphone?

From my computer!

Instructions for “Recording Computer Playback on Windows” are here:

You can copy that link address into Google Translate to have the page translated into your primary language.

Thank you for this link!
My webcame was just not connected to my computer. Now it’s ok. Sorry!
Have a nice day,
Best regards