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 ('a2a7ab9f9e1c34880c69b4e8cd0e53b8', -1, 1737484999, 1737484999, '12d90ed0', 10, 0, 0)

Line : 187
File : sessions.php