Don't panic! 😊
The "validate" button can be a bit tricky sometimes.
Please try to erase your email address then click on validate, re-enter your email address and click on validate again. You might have to repeat this operation a few times, but it should work.
If it still does not work, you can setup the Lovebox with a computer, here is how to do it.
If despite these instructions, the problem persists, do not hesitate to send us a short message 😉 Indicate as much information as possible -like your phone model- and we will help you as soon as possible!