phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c1b9ff0a9c24bdc7c2d49d4e8b3bd0d9' 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 ('c1b9ff0a9c24bdc7c2d49d4e8b3bd0d9', -1, 1714452249, 1714452249, 'c0a80201', -11, 0, 0)

Line : 187
File : sessions.php