The spinning arrow is a common symptom of a JavaScript conflict with either your current WordPress theme or one of the other plugins you are using. It can also be caused by a server-side warning or error. See Contact Form 7 Email Issues – there is a link there that covers JavaScript Conflicts.
I suggest you do a step by step approach to finding JavaScript Conflicts
1. Switch temporarily to a WordPress default theme (Twenty Eleven etc.) and see if the problem goes away.
If it does, you’ve most likely got a JavaScript conflict with your current WordPress theme.
If switching to default theme doesn’t help it could be one of the plugins you are using that is causing the problem.
2. Disable all plugins other than Contact Form 7
If doing that solves the problem, you can then add back each item – one by one, until you find the real cause of the problem.
same problem here…
i already changed to the twenty fifteen theme, disabled all plugins besides cf7 and visualcomposer, but nothing seems to work :S any other idea how to solve it?
(as well with older versions of cf7 it doesnt want to work anymore… just went back to 4.0 and 3.1, but nothing…)
