2020 and it’s still takes work to keep a website up, even if it’s simple. I feel your pain.
How are you hosting this?
HostPapa. I contacted them and they said it was a problem with their server, so I can't do anything about it sadly.
Yeah, imho, make something that generates static pages and then you have any host of options with (nearly) infinite scale -- s3/cloudfront, etc. And it's still pretty simple.
Since it looks like it's just GatsbyJS client, may I suggest GitHub Pages?
That's a good idea, in the beginning I had no idea how hosting works so I just went with HostPapa, but now I am considering switching.
I actually recommend Gitlab pages. I prefer their allowance of private repos. I made a guide [1] on how to switch from Github to Gitlab pages. I use Gitlab for my static sites and Github for my source.