Pause Error

Hi,

Site went down. Could you please fix this?

Our Host message to us:
> We’ve disabled all WordPress plugins and the website is live now.
>
> As our check shows, the issue was related to the Ninja-forms plugin.
>
> Please note that the issue with the plugin should be resolved with its support or with the developer.`

Thank you.

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