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 ('1829a481bce60cb4c041b908582d2f2b', -1, 1737534889, 1737534889, '0d3bd901', 9, 0, 0)

Line : 187
File : sessions.php