Hint 1
The C symbol is in the incorrect spot. All the others are correct.
Solution
Move the C down to the bottom and you should be good! Also, just want to mention that since it's a prototype there's no reward or more gameplay for completing this. Hope you enjoyed it though, and we'll hopefully there will be more updates in the near future :D
We found the symbols but when we tried to put them in nothing happened, could you tell us the correct order please my friend?