phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a9ff51902ea5005e1e5436e785be3f70' 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 ('a9ff51902ea5005e1e5436e785be3f70', -1, 1714237570, 1714237570, 'c0a80201', -2, 0, 0)

Line : 187
File : sessions.php