Trouble Shooting

Dear Jotform

What am I doing wrong? I´ve got a jot form on our website - www.kashjuna-lodge.com - under the last tab (Schreiben Sie uns). Meaning "contact us"

The form was fine before, but recently it started, that one can not send it off any more. 

If clients complete the form, fill in e-mail and name and press "abschicken" then the error message comes - "This form is currently not available".

I checked on the form builder if something was amiss, but can´t pick up what is wrong? Please help?

Thank you so much!

Many regards

Angelika