Why is my Dawn theme product page acting weird after changes?

Hey my Product page has gone all weird can someone help

the only changes i have made was

the collection list layout and round pictures

also the rows for products PLEASE HELP

URL- https://sweets-retreat.myshopify.com/products/original-choc-nibbles-100g

Hey @sweetbuddie ,

Did you happen to adjust your product code via the theme editor? If you’ve changed theme files and need to revert them, you can roll back .liquid files individually to a time and date before you made the changes.

Look forward to hearing from you!