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) VALUES ('b1a9eb2f1d1e81bbeec0633fc3c4a9b1', -1, 1714680124, 1714680124, '12e300c0', -9, 0)

Line : 158
File : sessions.php