I can log in navigraph charts

As titled, I have no way to log in to NAVIGRAPH CHARTS,Please help to check my subscription,I am buying the ultimate plan,thanks!!
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Hello!

We are experiencing an unusually heavy load on our servers at the moment and it is likely that this might have caused your issue. It should only be temporary, so please try again!

Sorry for the inconvenience, we’re actively looking into it!

Kind Regards,
Malte