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 ('a6fd61ebe47e69ba3e3380d31d540395', -1, 1714764369, 1714764369, '03830d25', 19, 0)

Line : 158
File : sessions.php