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 ('c2f1ca32f9cf3c3661af5943df7740ed', -1, 1737457961, 1737457961, '03914c4e', -9, 0, 0)

Line : 187
File : sessions.php