Why Do These Forums Go Down Multiple Times Per Day?

I have recently become fairly active on these forums, especially in the Champion Concepts section. I find it frustrating, however, that the entire NA forums seem to go down at least 1-3 times per day, for anywhere between a few seconds and over 30 minutes at a time.

In the case of tonight, and what prompted this discussion, I was about to submit important edits to one of my concepts and the forums went down right as I was hitting Update. Luckily I copy and save everything I work on to prevent the loss of my work, but I felt obligated to stay awake an extra 45 minutes in order to make the edits I wanted to make before leaving it for the world to see tomorrow. This is obviously my own choice and I don't blame anyone for it, but it is definitely a frustrating and recurring problem that I don't see any Rioters discussing or presenting solutions for.

So, why does this happen and is there a plan to fix it? Thank you.