Went to the building supplies store this morning, but it was closed because of IT problems.
Apparently, it's a world-wide problem.
Everyone and their mother uses the same damn software. Because, of course, they do.
https://www.welt.de/wirtschaft/article252601878/Stoerung-Flughaefen-Dax-Konzerne-Krankenhaeuser-Das-ist-der-Fehler-der-die-Welt-lahm-legt.html