404: User account expired

[...]

How can I fix that?

As announced here yesterday by DaB.:
> If your account was not extended (by mistake of me and by 
> slowness/forgetfulness of you), please open a bug-report in the TS-queue at
> jira [2] and one of the admins will extend your account; you can do the same
> if you need your account back in a few months.
[...]
> [2] https://jira.toolserver.org/browse/TS