@mcscx2 @hikerus Yeah, if an exception is thrown then it's PHP (i.e. !GNUsocial)
The /statistics.json and /friendica.json stuff are probably remote sites assuming (or wanting to check) whether certain pages exist. I guess friendi[ck]a.json is something available on #Friendica nodes and /statistics.json I don't know.
But there's nothing you can do about it in !GNUsocial except maybe make a plugin that responds to those URLs without logging about it...