Lorient moved off the bottom of the table after a 3-1 win over Guingamp, while there were wins for Nancy and Nates.
Ligue 1 leaders Nice crashed out in the last 64 of the French Cup on Sunday after a 2-1 defeat at struggling Lorient.
PSG slumped to their fourth Ligue 1 defeat of the season as they were beaten 2-1 at Guingamp while Bastia continued their resurgence.
Monaco kept up their outstanding recent form as Valere Germain scored twice in a 4-0 win over Marseille on Saturday.
Nice remain three points clear at the top of Ligue 1 after winning 1-0 at Saint-Etienne on Sunday, as Marseille beat Caen.
Monaco trimmed Nice's lead at the top of Ligue 1 to three points as Leonardo Jardim's side thrashed Nancy 6-0.