Cara atasii error : Fatal error: Call to a member function fetch_assoc() on a non-object in

@kopiHITAMjos coba dhe itu querynya di test di database, echo->copas->run sql btw itu ngga ada kondisi falsenya?

 $sql = "SELECT * FROM TABLE";
$result = $this->database->query($sql);

if ( $result === false ) {
    echo $this->database->error;
    exit;
} else {
  ..............
}