phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO filmscd_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('b63b2d4ac861a3f62877868adbf843b5', -1, 1711636630, 1711636630, '36a734ee', -2, 0, '0', '0')

Line : 175
File : sessions.php