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 ('40b4e25d8b4a81f1d0eed76ba44b4e2f', -1, 1748482034, 1748482034, '038edbfc', -9, 0, 0)

Line : 190
File : sessions.php