product card aspect ratio need to be fixed

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Hi, Guys hope you all are Okay, 

My problem is that all of my product images not in the same sizes and I have too many products So when I try to make crop throw Product Card Aspect Ratio 1:1 to be equal to each other the images all disappearing until I make it Auto Cropped. 
 So Please I need a solution As Soon As Possible 
 Here is my website