The joomla contact form is not correctly displayed under echo template. Is this a css error in the echo template?
see screen shot https://snetz.ch/home/kontakt
It seems like you provided that backend login credentials no longer working please advise.
You are most welcome. Glad to hear that your issue has been resolved now.
As a gentle reminder, kindly start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiry. I will lock and mark this thread as resolved.