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 ('9cbf67dba6a24aace1cd08fa986d65fa', -1, 1714360569, 1714360569, '12d853f0', 2, 0)

Line : 158
File : sessions.php