I don't understand, What's wrong with me about Gig Ranking?

[azizul21]

My Response Rate, On-time Delivery & Order Completion Rate are 100% and Feedback 5. My all gig was first page of Fiverr Buyer searching. Now my all gig has moved first page to last page within one days. No warning and no negative feedback. I don’t understand, What happened with me. Most of time I face this problem and It stay 1-2 months.
Everybody can help me, what is wrong and how can I fix this problem?