Something must have gone wrong in the settings of contact form 7.
see getting started with CF7
Also if you can tell us the exact problem, others here who are able to understand it may be able to offer a possible solution.
You may include links, form and mail section tags as well as screenhots if possible.
Thanks for your respons.
Please try the contact form at http://www.stadsmissionenscafe.se
Please add a valid link as there is no contact form on the link provided
I have inspected the form at the link provided.
Though the plugin successfully sends millions of emails every day, there are a host of issues that can stop or delay emails on both the sending and receiving ends. It depends entirely on your local Server & WordPress configuration. You will need to investigate this issue for your particular local configuration.
See Contact Form 7 Email Issues. There is a link at the bottom of the page to a comprehensive and detailed article which covers many issues. Most people that work through this information appear to be able to resolve their email sending & receiving issues.
Also see I get an error after submitting the form