Endnotes insert citation with number 1, i have already 80 citations

Hello, I am using Endnotes X9 and Pages 8.1 in Mac (Sierra). I did a document and inserted 80 citations. Today, I try to insert a new citation within the text and it places number 1! i am totally hopeless, is there any solution for this? is Pages not recognizing my library anymore? Could you please help me?

Thanks a lot!