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 ('1e3ad8829c696f11809d8ddcd21b9414', -1, 1713353891, 1713353891, '03eeebf8', -11, 0, 0)

Line : 187
File : sessions.php