What must a driver do if their Driver Card (Fahrerkarte) is lost, stolen, damaged, or malfunctions during a trip?

1. Drive without recording anything until the card is replaced next year
2. Make a daily printout from the digital tachograph at the start and end of each working day, write their name, driving licence number, and signature on the printouts, and apply for a replacement card within 7 calendar days
3. Stop driving immediately and abandon the truck on the motorway
4. Borrow a colleague's driver card to insert into the tachograph