Notice: Undefined index
This is most probably a problem with settings for the temporary directory, which is a typical issue moving from Linux OS to Windows or vice versa (this goes for the warning messages that you described)

You should go to: admin/config/media/file-system and set the temporary directory correctly for your local system.

The first two messages are PHP notices which are not critical, but indicating that there is a minor issue within your template files not correctly verifying variables. This is something that would normally be suppresed in a production environment and therefore you might not see this on your other server but it is there too.

By the way: I doubt that you are using Drupal 8 as you are indicating in tags, because page.tpl.php is something that clearly points to Drupal 7.