Hey there, @stevebullman! Thanks for contacting us. I’m happy to help you.
Can you please share which plugin you are using for the rentals?
Can you share more details on the error that shows? You can paste it here or share a screenshot. I recommend using https://snipboard.io. You can share the direct link to the image as a response to this topic.
Furthermore, I’d like to understand your site properly. Please share with us the necessary information below for us to investigate the issue further:
System Status Report which you can find via WooCommerce > Status > Get system report > Copy for support.
Fatal error logs (if any) under WooCommerce > Status > Logs. Then you can use the selector to search for Fatal Errors.
You could copy and paste your reply here or paste it via https://gist.github.com/ and send the link here.
Looking forward to your reply.
Have a wonderful day!