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 ('c089cd6116476a844b115d20e0ae3b63', -1, 1714789933, 1714789933, '03936708', -7, 0)

Line : 158
File : sessions.php