Product pages not displaying

WordPress & all plugins are updated

These product pages were working before, but now they are not:
http://proformpm.com/products/?s_p_c_t=1342&ident=1&product_id=7&cat_id_1_1=0&page_num_1_1=1&prod_name_1_1=&back=1

And the individually created product pages aren’t displaying properly either:
http://proformpm.com/products/bronze-bearings/
http://proformpm.com/products/iron-and-carbon-steel/

The catalog will display, but when I click the products nothing comes up – not even the proper title. And it also discontinues displaying my dashboard information at the top: http://proformpm.com/products/

https://wordpress.org/plugins/catalog/