Can't Enter New Item in Product Category

[MissMary]

Currently I have One Parent Item in Product Category - Books, with 3 child categories (Novels, Elf Series & Short Stories) all work perfectly. Today I went in to add another category - DVD and it will not appear on the menu. I even tried to make it a child of the book category, but it still does not appear. Yes I did make sure it was published. I have deleted and reentered and everything else I can think of to make it appear.

Please Help, BTW my website is www.thenorthpolepress.com and I use Joomla 3.5.1, VM 3.0.16

Thanks in advance for your help
Mary

[MissMary]

Thanks its Fixed, not sure what happened but ok now