Hello,
The shop page is the functional page and there should not be any content.
We would recommend enabling the title in the Theme Settings > Page title.
In addition, please make sure you did not disable the title in the page settings. The product category inherits the settings of the shop page.
Then you can insert an individual title and it will be shown. If you need will correct the tile with CSS.
The product page does not have such a title, unfortunately.
If you have any questions please feel free to contact us.
Best Regards