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 ('e56c126e53906bdc979f8c94e4a5b531', -1, 1711617936, 1711617936, '03eb4be5', -1, 0, '0', '0')

Line : 175
File : sessions.php