phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('033a85b8eb0b8c10a4a0341324def642', -1, 1713948411, 1713948411, '0391240a', 0, 0, 0)

Line : 187
File : sessions.php