Hi @Dmitry!
I'm happy you reached out to the Community about seeing Access Denied from that link, I'm here to help.
When you see that error message, it's because the post was deleted.
If your question is still unanswered, please feel free to post it here and I'll work to get that resolved for you.
For information on how to Create a Future Invoice, click here.
Please remember, I'm always here for any other questions or concerns.