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 ('d612347b980d94b6a607caf689b40e3f', -1, 1714368610, 1714368610, '12d8e93a', -4, 0)

Line : 158
File : sessions.php