wickproblems

My son started making paraffin candles which are beautiful. But around the wick, there is an indented sinkhole. How can this be prevented? Or does it require a second pour? Thanks for any advice.

Hello! (Please see pics they may help work out the problem!) I am new to candle making and made my first ever candle last week. I have made it using soy wax and EOs (Myrhh, Cinnamon Bark and blood orange) and am very happy with the cold scent throw and also the hot. I have made these candles...