In your browser console please enter following code to show the image URL fields
jQuery('.upload_image_button01').css('display','block');
jQuery('.upload_image_button02').css('display','block');
You can also inspect and change display property to show hidden fields.
https://i.ibb.co/Lk8kHM0/Screenshot-2021-03-26-at-10-29-30-AM.png