How not to stop the database?

Question

Python

There is a code

@bot.message_handler(commands=['start'])
def welc(message):
    idUser = message.from_user.id
    userName = message.from_user.first_name
    bot.send_message(message.chat.id, "Что хотите узнать?")
    cur.execute("INSERT INTO users(username, id_tele) VALUES(?, ?)", (userName, idUser))
    cur.close()
    conn.commit()

After processing /start once, crashes a second time: sqlite3.ProgrammingError: Cannot operate on a closed cursor.
How is it possible to fix this problem?

Answer 1

not close the cursor?

Answer 2

EVERYTHING, I DECIDED
I just declare in the cur function in a new way and it works