phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c19769797cb37cbf83ca3cff5721497f' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c19769797cb37cbf83ca3cff5721497f', -1, 1769590739, 1769590739, 'd849d86e', 2, 0, 0)

Line : 187
File : sessions.php