504 Gateway Timeout error is usually a network error between servers on the Internet or a problem with a real server, which means that the problem is not with your PC or Internet connection.
Ụzọ njehie 502 Bad Gateway na-abụkarị njehie netwọk n'etiti sava na ịntanetị, nke pụtara na nsogbu ahụ agaghị adị na kọmputa gị ma ọ bụ njikọ Ịntanetị.