Parse error: syntax error, unexpected 'public' (T_PUBLIC)

Hello, I’m trying to buy the template wordpress (quick-rental-vehicles-booking-wordpress-theme) to you, but when I try to activate this template displays the following error:
Parse error: syntax error, unexpected ‘public’ (T_PUBLIC) in/home/dislasof/public_html/inicio/wp-content/themes/car-rental-1/include/metaboxes/classes/cs_meta_fields_render.php on line 1

What is the solution for this error?

This can be related with your server’s PHP version. Try to upgrade to the latest PHP version available on your server.

Thanks for contributing.