If you are installing a template in a working store, make a backup before.
1.Log
2.Method 1:
In the "ZIP file" field, select the installation file of your template and click "Save".
Method 2:
Add the installation file to the theme folder using FTP, then select the archive in the "IMPORT FROM FTP" field and click save.
3
4. On the next page, click the "Save" button.
5. On the next page, click the "Finish" button.
Go to Advanced Parameters->Performance select "Recompile templates if the files have been updated" and save.
Next click "Clear cache".
if the comments module is missing after installation:
Go to Modules and Services->Modules and Services and find the module "Product Comments" and install it.
If you can't find
http://angarthemes.eu/download_modules/productcomments.zip
Clear again PrestaShop cache after
If after installing the theme the product photo