When I click on ''send us an email'' I always get an error window. Would anybody know the email address?
I understand that you want to contact Clarity Support. All you need to do is to sign in with your Clarity account. At the top right corner, hover your mouse on ME and then click Support. You will be directed to another page where you can click SEND US AN EMAIL link.
Once you click that, you will be asked to open your EMAIL Application.
For reference though, you can email them at firstname.lastname@example.org.
Hope this helps!