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 ('5737883ef66673a78e40f5c0248e452b', -1, 1730418576, 1730418576, '038e8722', -1, 0, 0)

Line : 195
File : sessions.php