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 ('f96a86f888f4bf6649dc75c92b7b21b9', -1, 1726880225, 1726880225, '0391a695', 3, 0)

Line : 158
File : sessions.php