Kaliform Activation

Hi
The Kaliforms is no longer active or appears as a plugin on my site.

I am using the Color lib Illdy theme and Kaliforms came as a recommended plugin for forms which I activate and was previously working.
However I am now just getting the short code for the form. When I check for the plug in it is not displayed on the dashboard. When I under appear – about Illdy recommended plugins it state Activate. When I click activate it state activating and never activate.
What is the recommended action to fix?

The page I need help with: [log in to see the link]