I’m wondering if your book was reported to Wattpad? If so, it means there something within your book that doesn’t follow their guidelines.
I can still see your book in my library, but it’s darkened, suggesting it got deleted. If you don’t have a copy of your work, I can send you your work through email.
If you want to continue your book and re-add it back to Wattpad, all you have to do it go to the rules and regulations, then go back through your work, critique it a bit to meet the requirements and you should be good.