Grammar checking, slightly different

A while ago I installed "After the Deadline" on two machines running Win
XP, LibreOffice 3.4.4
EVERY time I start LO, I get the following error message:

Could not connect to AtD service.
Host:https://en.service.afterthedeadline.com/
Reason: Method failed HTTP/1.1 503
Service Temporarily Unavailable
The grammar checker will not be available.

Can that be fixed somehow, or do I better disable this function altogether?

Thank you.
Thomas

If I remember correctly, "After the Deadline" uses an external service
to handle the "grammar information" for the language you are using. I
wonder if this error is telling you that the online portion of the
system is not working. Also, I believe that this grammar system was
still in "beta", the last time I looked at it in the Extension Center.

Maybe if you go online and do some configuring, you might get it to
work. At least you can contact the creators and find out what the error
actually means.

    {quote}
    After the Deadline relies on large language models to check your
    writing. Because of this, it must communicate with a software
    service. A default SSL-enabled server, hosted by Automattic, is
    configured for you. The exact software and models hosted by
    Automattic are available under the GPL from
    http://open.afterthedeadline.com. It's easy to configure the
    software service end point of your choosing from this extension's
    options dialog.
    {unquote}

I think it's unable to connect to its server. It cannot function offline,
unless you download and run the server.

Anyway, LanguageTool (www.languagetool.org) is better. It works offline too.