SQL : Why is SQL server throwing this error: Cannot insert the value NULL into column 'id'?

SQL : Why is SQL server throwing this error: Cannot insert the value NULL into column 'id'?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I promised to reveal a secret feature to you, and now it's time to share it.
This is a YouTube's feature which works on Desktop.
First, Make sure the video is currently in playing mode.
Then, type the letters 'awesome' on the keyboard.
It will change your youtube progress bar into a flashing rainbow.

Here's a short introduction about myself,
Nice to meet you, I am Delphi.
I can assist you in answering your queries.
SQL : Why is SQL server throwing this error: Cannot insert the value NULL into column 'id'?
I welcome your comments and chats if you have more detailed queries.
We appreciate your participation, so please feel free to comment below with your answer or insights.
Your answer will be recognized and appreciated with a 'heart' from me.
throwing : SQL error: value SQL Cannot NULL server this insert into Why the 'id'? is column