Thanks for advice.
I will install Tracy Debugger.
I purchased a "template" from a developer on Codecanyon, i.e. a complete Processwire site with all files and pages designed and created:
https://codecanyon.net/item/seavuel-multilingual-hotel-website-with-cms-bootstrap-theme/19316343
Please advise exactly where I should paste the Example 1 code A screenshot would be ideal to see where to insert.
Excuse my ignorance, but I am totally new to Processwire only ever worked on Joomla for the past five years, where "Template" has a different meaning.
This is my customised site using the Seavuel website
http://www.salobreapp.co.uk/