I cannot access my Trello-account - it says I don't have one (been using it for YEARS)

[Myriam Denise Engelbrecht]

Sieht aus, als ob Sie zum ersten Mal bei Trello sind.

Möchten Sie ein neues Trello-Konto mithilfe Ihres Atlassian-Kontos mit der E-Mail-Adresse ***** erstellen?

"Looks like you're using Trello for the first time. 

Would you like to open a new Trello-account using your atlassian-account with your email-adress ***?"

This is the text message I get when I try to log into my Trello account that I have been using for years before it was migrated to Atlassian. I never had an issue before, that only just started today.

I have years of boards and cards on there - I use it as a calendar for my events. It would suck to lose all of the information on there. What can I do??? Was my account deleted for some reason? I never received any messages.