Hi @barker191, I hope you are doing great.
At this point, there is no way we can tell what could be the exact issue. When it comes to troubleshooting, we always advise taking special care and creating a backup just in case.
The first thing you want to check now is whether the reviews are enabled on individual products.
Go to WooCommerce -> Products, then pick a product and click Quick Edit to get to this screen:
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You need to make sure that the “Enable reviews” option is checked on each of the products.
If you have enabled the reviews on both individual products and in the settings as suggested by Pavle, and they are still not showing up, this means that you more likely have a conflict with one of your plugins so checking your plugins might be a good idea. Sometimes a plugin may override the functionality or disable the product reviews.
Anyways reinstalling the theme will not likely help out here unless the theme was customized(changes made on theme’s files).
If none of these works for you kindly send us one link of a product that has this issue so we could take another look, we might be able to get more info that way.
I hope this helps, have a great day,
Andrija