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 ('5e0084c1ef232108e2cd38d3b2b1596c', -1, 1714403863, 1714403863, '03856cf1', 2, 0)

Line : 158
File : sessions.php