It looks like the recent woocomerce update to 3.7.0 has caused the images to load vertically rather than horizontally:
Thanks for reaching us. We are sorry for your inconvenience.
Could you send us the latest version of the theme that you are using on your site. We’ll try to investigate your issue installing your theme on our local setup.
You can upload the theme file in Dropbox or Google drive and send the download link here directly.
Looking forward to hearing from you soon.
I have created a Staging Site and you can use the login details below to have a look:
It’s working here: https://www.loom.com/share/6db51d2f9e104998a4e1cbd9a07177ea