Compatibility with WordPress Mobile Pack 2.0

I run a website for a scouting group in Canada, and we really like the plugin and it works well with desktop systems, however, when our scouting families try to access the sign up sheets via their mobile browsers, the sign up sheets plugin does not display with the WordPress Mobile Pack 2.0 plugin we have enabled.

Debugging it is not within my current skill sets so would appreciate guidance on what you need.

1stgreenwoodscouting.ca is the site.

Thx!

https://ww.wp.xz.cn/plugins/sign-up-sheets/