How to execute the request correctly?

Question

MySQL

Hello guys. Please help me understand why a request of this type does not work:
"Before this section, I connect to the database and execute 1 request, after that I want to execute the second one, but something goes wrong .."

IDbCommand lolo = dbcon.CreateCommand ();
    string sqlto = "INSERT INTO `tranzakcii`(`nomertranzakcii`, `idc`, `price`, `datetranzakcii`) VALUES (0,1,100700,0)";
    lolo.CommandText = sqlto;
    lolo.ExecuteNonQuery ();

It does not give any errors, the application closes immediately.

Answer 1

Have you tried wrapping this code in a try-catch and debugging to see what happens there?