Anyone else having issues with Blacklane CD?

1. Arrived into FRA last week in F and received a CD booking confirmation a day before, stating “Business sedan”. Live chat with EK confirmed a “First car” was booked. On arrival at FRA, received another confirmation from Blacklane that my CD was waiting in a “Business sedan” - which is what I got.

2. Trying to get the Blacklane App to work (using the same user info as on EK/the booking) - doesn’t work. Constant error messages and being asked to try again later.

What a pain. Never had any issues with Sixt who used to provide CD in Germany.