phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a173c1ac291649ac57d9c2f8a12bdc05' 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 ('a173c1ac291649ac57d9c2f8a12bdc05', -1, 1764966349, 1764966349, '126109ae', -9, 0, 0)

Line : 187
File : sessions.php