Problem after having changed the email.
I have changed of company. So, I tried to change of email for my account. For this I went to QT web site. This changes has been reported to the forum. I was no more able to access using my old email. But I was also not able to access the forum using the new email. When I try I have an "internal error".
So, I have recreate my former account (as I still have access to my former email). And, surprise, I my informations have appear again.
It seems that there is a synchronization problem between the Qt site and the forum.