Can‘t sell a rider

[drei.zehn]

Error Code: 0
Error Message: Rider McPhee (ID: 457320) is signed up for a race and cannot be sold.

I am not signed up to any race.

[Alkworld]

Error Code: 0
Error Message: Rider McPhee (ID: 457320) is signed up for a race and cannot be sold.

I am not signed up to any race.

You were signed up for a race that was later deleted by the calendar admins. One small gap in the code there. I'll now clean up your data.

Edit: Couldn't find a bug, maybe it's from a race a longer time ago before I fixed that bug ...