This is very confusing for you. I think if a buyer sent this to me, I would interpret it to mean that he is still checking the delivery that you sent and he is just worried that it will auto complete before he has checked that he’s satisfied. But he so far sees nothing to worry about.
‘Right now’ (in his words) he has not noticed any need for a revision but he has more checking to do before he feels able to sign it off.
It may just be that he has misinterpreted some sort of message Fiverr has sent him, i.e. that he has gained the impression that it is fine to ‘request revision’ just to get himself more time to look at the delivery.
I had a buyer who yesterday asked me whether I felt he should approve the delivery, and could I please tell him when to approve it.
I was a bit taken aback too because nobody ever asked this before, and he also was a happy buyer who was still working through the delivery and he felt he was running out of time.
I replied that when or whether he signs the job off is entirely his choice and that I do not wish to influence him in any way at all. He then signed it off. I think there are some confusing Fiverr messages going to buyers right now.