Cyclum Puzzle internal server error

I tried to complete the cyclum puzzle and got very far through it, but when I finished clicking on the roses (in what I think is the final step) the page tried to refresh but came up with a white page that just says "internal server error". I am using windows 10 and chrome (i also tried firefox same results) I also tried to do the puzzle through my steam account. I have the tragic torch skin so I must have completed the puzzle many years ago but I was testing this for my friends who are newer to the game than me and have never completed the puzzle.