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 ('d0ba61d8c54f59a1cba1512e9ac31bcb', -1, 1714012328, 1714012328, '030f2e0d', -4, 0, 0)

Line : 187
File : sessions.php