Why a skilled seller do not get job?

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I am a level two seller. I have 220 positive reviews out of 221 reviews. But I am not getting orders from some months. Once my gigs were on the top of first page. But now I can not see my gig! My question is, why Fiverr does not rank skilled freelancers gigs? I always provide quality services to my buyers and I have some permanent buyers too. They are placing orders from some months but not getting new buyers. I am really frustrated. Can you suggest me guys, what should I do?

Thanks in advance
Sumaiya