Main Forum Section 502 error

[angerbda]

I got a funny one...
Trying to access to the forum section via http://aarinfantasy.com/forum/forum.php I end up with an error message: " 502 Bad Gateway "
But if I dig a post in a specific sub-forum, I can navigate and see it without issue...

[EDIT]
... and after few minutes, it's back to normal...
Is it an error message expected during backup time? First time I see it...

[MiraiKurosaki]

I've gotten those recently now and again but I believe it's not just the daily back up but the entire forum going under updates. The forum isn't completely done with the main update after all

[angerbda]

Probably the restart of the server then... (for the recent ones I saw...)

[EDIT]
... or just random... For the moment (starrting 5:55 pm GMT+8) it is the main/news page that is 502... for a minute or 2...
(http://aarinfantasy.com/forum/content)