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 ('43344e6d48a23aaf658403b94be1afe0', -1, 1714711600, 1714711600, '12743e2d', -4, 0)

Line : 158
File : sessions.php