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 ('6bd2192cc6ce75f6aa2e4d0c6a66065a', -1, 1713873098, 1713873098, '12745a8d', -9, 0)

Line : 158
File : sessions.php