[[DOG]irinel1996]

Probably this isn't anything important but you did this:

pawn Код:

forward SendQuery();
public SendQuery()
{
        // callback for queries that don't fetch data
        return 1;
}

It isn't needed, just make the query in the following way:

pawn Код:

mysql_function_query(connection, "YOUR SYNTAX", false, "", "");
//Just put "", it saves time.

PD: nice script. rBits is a great include too, for a good optimization.