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 ('960130c308a5f35e2ac921756683c752', -1, 1729229434, 1729229434, '0391364b', -1, 0, 0)

Line : 195
File : sessions.php