Simplify the following text for a Grade 9 native English-speaking person.
Original: Hertha had to sell the team 's former home ground in 1974 when investigations about the match fixing scandal of 1971 showed that the club was 6 million DM ( â 12 million ) in debt .
Simplified: However , Hertha was again soon touched by scandal through its involvement with several other clubs in the Bundesliga match fixing scandal of 1971 . In the course of an investigation of Herthas role , it was also revealed that the club was 6 million DM in debt .