I cannot enable product reviews on a Magento 126.96.36.199 installation.
The module output is enabled in
System > Configuration > Advanced > Advanced > Disable Modules Output
However no trace of Product reviews in
System > Configuration > Catalog
The website previously had installed Yotpo reviews but the module has been uninstalled.
I also verified the theme xml configuration files and there is no reviews module suppresion.
Any hints on troubleshooting?