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 ('96b11f5f5cfa9e6d14cc7240d92f4265', -1, 1714423469, 1714423469, '0390e348', 20, 0)

Line : 158
File : sessions.php