Dear admin,
Could you delete my previous note? I forgot to send it as a private note.

@Alexandros_Adamos Done. Please note that this is a bug tracker and not a support forum. I appreciate that you are trying to help Kali Linux users but don't ask them to submit data privately, we want any useful data to be available publicly to all including us, Kali developers...

And when you see that it's not a bug, but just a user's mistake or a lack of knowledge, please drive them to the correct documentation but make it clear that their request was misplaced and that they should have sought support forums instead (forums.kali.org / IRC).

Here it doesn't looks like a bug but just a user who has no repository configured in /etc/apt/sources.list and who should read https://www.kali.org/docs/general-use/kali-linux-sources-list-repositories/

I understood.
Thank you for your explanation ver much.
It was clear and I understood. But If a person wants to contact me privately using e-mail, Can I send the information like my e-mail as a private note to her/him?

@Alexandros_Adamos I'm not sure that the bug reporter gets the private comments...

@rhertzog Thank you so much