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 ('9fb06dbf196b1efb8dac7a2f67b6def6', -1, 1714677744, 1714677744, '12da370e', 3, 0)

Line : 158
File : sessions.php