So one thing you can try is grabbing some patch fabric and glue it on the inside of your shoe to cover the hole using either gorilla glue or shoe-goo. Ensure you stuff the shoe with enough of something to apply pressure to the fabric to hold in place. If you want to take it a step further you can also spray some paint into the hole to color the patch to a color close to your shoe (test the color first and always tape off the area you don’t want accidentally painted)