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 ('423ab62219757813d24942185b4950d0', -1, 1713301272, 1713301272, '03850cac', -4, 0, 0)

Line : 187
File : sessions.php