Hi there!
Thanks for your query.
I have checked your site and it is looking good at my end: https://prnt.sc/1sh9edt
For your other query about price format change I think, this requires code customization actually!
So, I can only give you tips if you want just replace the commas to dots.
To do this you need to go to the following location:
\components\com_spproperty\helpers\helper.php
Then you may make the following change:
Hope this will solve the issue for you.
Note: Code customization is prohibited here, customers need to do it personally.
Best Regards