Yeah, I'm still getting the Internal Server Error message fairly often. There will be long spells without it, and then it shows up again. (Appropriately, even when I posted this message!) Yes, me too. Especially today more than yesterday. But as boroda74 said, a refresh clears it. Still ... it shouldn't be.
The new Hosting server OS update seems to broke some stuff along with this annoyance.
I am working on a major update for the website backend, specially caching that should reduce server resource usage. Hopefully this might
According to Steven this problem started with SMF 2.0, before the new website was even introduced. There was a temporary fix for this back then, but with the new server update it is not compatible anymore.
I am looking into it, will let you guys know if a proper fix is possible or not.