phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2f0d54c5e07192d5aa4f3f1b008a3b5b', -1, 1737424544, 1737424544, '038d197d', 8, 0, 0)

Line : 187
File : sessions.php