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 ('d33ba95343ad955b462f9ba5907c0f14', -1, 1714303728, 1714303728, '0391b26a', -9, 0)

Line : 158
File : sessions.php