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, session_admin) VALUES ('062733ed0da6c9be3a855c1b35352734', -1, 1709572230, 1709572230, '22ec8681', -4, 0, 0)

Line : 187
File : sessions.php