phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO parcopineta_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('728c4d6f5a79b6fc5190dd5af1b702a9', -1, 1714099468, 1714099468, '12d8baa4', -7, 0, '0', '0')

Line : 175
File : sessions.php