Fatal error: Call to a member function FetchRow() on a non-object in /opt/lampp/htdoc

[steinm]

try to install letoDMS 3.3.9...
as you can see im testing with lampp 1.8.0 on lubuntu 12.04. but im not using any system php /apache etc.
i got this message while using installer after entering paths and he found anything (thats a litle tricky if you use your own php-include-path to install those pear packages) and i klick on aply.
also i have many Strict Standart messages. Is this php5 problem?
and why is that FetchRow not working?

install.php:

PHP Code:

<?php 

304  if ($connTmp->IsConnected()) {

305                    $res = $connTmp->Execute('select * from tblVersion');

306                    if($rec = $res->FetchRow()) {

307                        $updatedirs = array();

308                        $d = dir(".");