Archive parameter not specified

Hi
I am new to WordPress but not new to IT support , but of course mainly Windows world :=)

I am helping a friend to move a existing WordPress installation from one web hosting to another web hosting. I have been using Duplicator and created the installer.php and the *_archive.daf files. I got a warning regarding the size when I compressed it but just a warning.
I copy with ftp (winscp) the two files to my new web hosting root folder and changed in my hosts file to point to my new web host.
So then I could goto http://[website.com]/installer.php and it run on the new web host.
I have renamed the correct website name to [website] in the error message

But after 10 seconds I get the following error:

INSTALLER ERROR:
Archive parameter not specified

[PHP ERR][NOTICE] MSG:Undefined index: DUPX_STATE [CODE:8|FILE:/storage/content/08/[website]/public_html/inst/dup-installer/classes/class.logging.php|LINE:199]
[PHP ERR][NOTICE] MSG:Trying to get property ‘mode’ of non-object [CODE:8|FILE:/storage/content/08/[website]/public_html/inst/dup-installer/classes/class.logging.php|LINE:199]
————————————–
EXCEPTION: Archive parameter not specified
TRACE:
#0 /storage/content/08/[website]/public_html/inst/dup-installer/main.installer.php(141): DUPX_Log::error(‘Archive paramet…’)
#1 {main}
————————————–
[PHP ERR][NOTICE] MSG:Undefined index: NOW_TIME [CODE:8|FILE:/storage/content/08/[website]/public_html/inst/dup-installer/classes/class.view.php|LINE:21]
[PHP ERR][NOTICE] MSG:Undefined index: NOW_TIME [CODE:8|FILE:/storage/content/08/[website]/public_html/inst/dup-installer/classes/class.view.php|LINE:21]

What should I do to troubleshoot this ?