Sascha Jurak on "Contact form is not working anymore"

HI,
Thanks for your help!
1. I use Contact form 7
2. http://www.nuadthaiyogasalzburg.at
3. Yes it was working perfect.
4. Try it out! Instead of the confirmation comes an error that the site is not found
5. I always update everything ... looks like that is no good idea?
Thank you again
Sascha