2.4.2 on Catalina 10.15.7: no sound on recording

Hello, I have been trying everything I’ve found around to make run Audacity 2.4.2 under Catalina 10.15.7 but seems to be no way to make it record or play back any sound. I need to use it to play back my audio files, and nothing is working; and if possible to make the microphone run too.

I’ve tried with Terminal many times and nothing happens, only errors.
I have been using Audacity for many years in other MacBooks before and neve had a problem with it. I used it to compose and process and mix my compositions.Please, any help is welcomed!!! Thanks.

What are the errors?

What are you trying to record from? (Example: “recording from a Blue Yeti Pro USB microphone”)

I’m running Catalina, and the latest 2.4.2 no issues.
What sort of Mac are you running?
Have you got it running yet?

Also, make sure Audacity has permission use your microphone. See here: https://support.apple.com/en-gb/guide/mac-help/mchla1b1e1fe/mac#:~:text=On%20your%20Mac%2C%20choose%20Apple,%26%20Privacy%2C%20then%20click%20Privacy.&text=Select%20Microphone.,it%20to%20access%20the%20microphone.