Need suggestions for pre press

Hi, I need help to design my artwork for the ctp. My artwork has 2 spot colors one is warm grey 9c and 9224C, warm grey is background color and other is text color in the back panel you can see the text is too small what should I do to get it print without any errors below is the link for the artwork. drive.google.com/file/d/1Z5f-KxzPc2G2YNL7Oq0JR6Bz_Yvf3ZVR/view