Hey there! That's strange. Maybe the quiz was removed due to technical difficulties or some other issue. Have you tried contacting the website's support team to ask about it? They may be able to provide some information or even extend the quiz if it was taken down prematurely. In any case, it's a shame that you weren't able to participate in the quiz, especially with a prize on the line. Hopefully, the issue can be resolved soon and you can still have a chance to test your knowledge and win that GSC copy! Anyway you can create a quiz by yourself!