I am facing this error whenever I am writing a review comment after order cancellation…
Something went wrong, please try again in a few minutes.
I already tried 10/12 times…
I do not think you can write a review after an order has been canceled. 
3 Likes
Once an order is cancelled, you can’t post any comments in the order itself.
What you can do is to try an reach the buyer via inbox messages.
Hope this helps,
Florin
1 Like
Thanks for your reply