Slideshow doesn't work

Hello, thank you for a great plugin.
I apologize for my English, I know it’s not the best…
I update your plugin but now I cannot see the slideshow.
In the admin, manage galleries, all the galleries are fine.
Please, have you any idea abuout this issue?
You can have a look here.
Unfortunately, I also bought the PRO version before to test the free version (2.0).
Thanks in advance for your help.

https://www.ads-software.com/plugins/nextgen-gallery/