Hello Kotitihaere,
I have try downloading from the url that you provide.
It seem that the robot.txt is blocking wget from crawling.
Because wget respect robot.txt, but good news, it's configurable.
You can turn off robot support of wget by using the execute command.
1. In basic startup options, there is execute command
2. Tick on execute command, and put in the following... robots=off
Best Regards,
Khomsan