Message error when attempting to access the "Email preferences" page

[mariaberlinger]

FxA version:

• 1.269.2;

Prerequisites:

• Have an fxa account;

Steps to reproduce:

1. Navigate to https://accounts.stage.mozaws.net/ and login using an existing account;
2. Click on the "Email communications" option displayed in the navigation menu;
3. Click on "Sign in" button;

Expected result:

• The "Manage your Email Preferences" page is displayed;

Actual result:

• The ""We are sorry, but there was a problem with our system. Please try again later!" message error is displayed;

Notes:

• The error is encountered for both stage and prod accounts;
  

[alexgibson]

@mariaberlinger also mentioned that they hit this one in prod too (screenshot below)

[pmac]

Always hit this or it's intermittent?

[mariaberlinger]

Hello,
Pretty often, like 8/10 times.

[robhudson]

Here's an example sentry report from this:
https://mozilla.sentry.io/issues/4472526489/events/7521a8f3e40d459da17fe03d2773da0b/

[Backspaze]

I also get this error, but in my case it's not intermittent - I always get this error message when clicking on that link. At first I thought it might be related to another issue I have with my account (https://support.mozilla.org/en-US/questions/1428155#answer-1612527) but as this seems to be happening to more users, it might not be related at all.

[LuminitaB]

Hello,
The issue still reproduces today, in Production, using version 1.270.3.
Closing and reopening the preferences page works as a workaround.
Thank you.

[robhudson]

We recently updated the redirect to go to the newsletter recovery page rather than a dead-end error page so that users can hopefully continue and get to their email preferences. It's not a true fix but it helps some.

[mariaberlinger]

Hello,

For a newly created account, with all the 3 newsletter options checked at creation, I am encountering the following message error. (See attached media)

Even if I enter the email address in the field, I am receiving a message error that says the account is not created, even if it is. (see attached media)