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 ('db8784e97815aeb0f22dbc130d8a75cf', -1, 1743750808, 1743750808, '12dedb94', 2, 0, 0)

Line : 187
File : sessions.php