Insert page getting "there is an error in your SQL syntax"

change to what?
class WA_MySQLi_Query {
public function __construct($conn, $mrt = "mrt") {
$this->Action = "";
$this->UseAction = "";
$this->AffectedRows = 0;
$this->Connection = $conn;
$this->Debug = true;
$this->EncryptionAlgorithm = "blowfish";
$this->EncryptionKey = "Change Me";
$this->EncryptionMode = "cbc";
$this->Error = "";
$this->ErrorMessage = "There is an error in your SQL syntax.";
$this->ErrorNo = 0;
$this->FieldCount = 0;
$this->Filter = "";
$this->FilterValues = array();
$this->ID = 0;
$this->InsertID = 0;
$this->JavascriptRedirect = false;
$this->MRTField = $mrt;
$this->NumRows = 0;
$this->ParamColumns = array();
$this->ParamCount = 0;
$this->ParamDefaults = array();
$this->ParamTypes = array();
$this->ParamValues = array();
$this->Prepared = true;
$this->RelationalColumns = array();
$this->RelationalKeyColumn = false;
$this->RelationalRows = array();
$this->RelationalRowsFound = false;
$this->RepeatConditions = array();
$this->RepeatedParams = array();
$this->RepeatIndex = 0;
$this->SelectedResult = false;
$this->Salt = false;
$this->SaveAs = "";
$this->Statement = "";
$this->Table = "";