Error when manuall add orders

[spc]

Hello

I have uppdate from 1.4.7.0 to 1.6.0.6 and the page works fine.
But i have a small error that popups.

The first one is:

Notice on line 1693 in file /www/cache/smarty/compile/3b/19/7b/3b197b247c760ae49aac31dbaff016f2374c48c9.file.form.tpl.php
[8] Trying to get property of non-object

Notice on line 1694 in file /www/cache/smarty/compile/3b/19/7b/3b197b247c760ae49aac31dbaff016f2374c48c9.file.form.tpl.php
[8] Trying to get property of non-object

Notice on line 1693 in file /www/cache/smarty/compile/3b/19/7b/3b197b247c760ae49aac31dbaff016f2374c48c9.file.form.tpl.php
[8] Trying to get property of non-object

Notice on line 1694 in file /www/cache/smarty/compile/3b/19/7b/3b197b247c760ae49aac31dbaff016f2374c48c9.file.form.tpl.php
[8] Trying to get property of non-object

Notice on line 1693 in file /www/cache/smarty/compile/3b/19/7b/3b197b247c760ae49aac31dbaff016f2374c48c9.file.form.tpl.php
[8] Trying to get property of non-object

Notice on line 1694 in file /www/cache/smarty/compile/3b/19/7b/3b197b247c760ae49aac31dbaff016f2374c48c9.file.form.tpl.php
[8] Trying to get property of non-object

Notice on line 1693 in file /www/cache/smarty/compile/3b/19/7b/3b197b247c760ae49aac31dbaff016f2374c48c9.file.form.tpl.php
[8] Trying to get property of non-object

Notice on line 1694 in file /www/cache/smarty/compile/3b/19/7b/3b197b247c760ae49aac31dbaff016f2374c48c9.file.form.tpl.php
[8] Trying to get property of non-object

And then the second one:
Property Order->id_customer is empty

Why do i get this and how do I remove them....