When a SQL statement fails it writes the SQL statement to the page along with the error message. This seems to imply that it is failing without an error message, which makes it hard to tell exactly why.
If you open your rsobj.php file you should be able to find this line:
die($this->Statement . "<BR><BR>" . mysqli_error($this->Connection));
and then maybe add this line above it, so it reads:
var_dump($this);
die($this->Statement . "<BR><BR>" . mysqli_error($this->Connection));
That will give you a lot more information that might lead you to the reason it is failing.