Hi,
I shared my access through the hidden content.
Thanks in advance for your assistance.
The form builder which does not send email is accessible through:
Components > SP Page Builder > Pages > La Tribu des Petits > section "Inscription"
The form builder is hidden. And as a workaround, I added a simple contact form just above. This one is working fine.
By the way, I have a second issue since I migrated my website to Joomla 4. It is about the menu "Off canvas menu La tribu". It is displayed but the menu does not appear on laptop nor mobile. If you have any tip to fix it, please let me know.
Many thanks in advance