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 ('bf9a19b2428375b9f0b9f3b8b1d54392', -1, 1737485939, 1737485939, '1276780e', -9, 0, 0)

Line : 187
File : sessions.php