phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'db61c4989b205c7757e309c4a4febeb3' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('db61c4989b205c7757e309c4a4febeb3', -1, 1764764044, 1764764044, 'd849d8de', 9, 0, 0)

Line : 187
File : sessions.php