504 error when creating a new account

[sara11]

We encountered the following 504 time-out error when trying to create a new account. We can place the data correctly, when clicking on save the page is loading forever until this 504 error appears.

On the contrary, if we look at the administration in clients, the users are created properly. We are on version 1.7.8.3, we have just recently upgraded from version 1.6 and the rest of the website seems to be working fine.

If we put the login information of the new user created, you can correctly access the web with your account despite the fact that the creation has thrown this error.

First I thought if it was a redirection error, but looking at the prestashop files everything seems to be correct, I have tried to activate the debug mode, it does not throw any error either, everything is correct. I honestly have no idea what could be going on.

Thank you, sorry for my english.

[R.bar.]

Same problem here, with new instalation in a 1.7.8.3 version. Any solutions?