Simplify the following text for a Grade 8 native English-speaking person.
Original: The club was re-named SC Aktivist Brieske-Senftenberg in 1954 and played in the DDR-Oberliga generally earning mid-table results until calamitously falling all the way to the fourth tier Cottbus Bezirksliga in the early 1960s .
Simplified: The club was re-named SC Aktivist Brieske-Senftenberg in 1954 and played in the DDR-Oberliga and was in the midfield of the table . In the early 1960s the club was relegated till Cottbus Bezirksliga .