First some facts:

1. Unfortunately, it is not possible to install the Quickstart package inside an existing Joomla installation via the Extension Manager, because the Quickstart also includes the Joomla! CMS itself. This package is strictly for use with a new Joomla! installation to provide you with a duplicate of our demo for that particular template.
2. You can install Quickstart just like a typical Joomla 3.x installation process (step by step).

If during QS installation you would see such a error message :  Can't create table 'prefix_shaper.#sql-f49_2116eec' (errno: 121) SQL=ALTER TABLE `resort_sr_taxes` ADD CONSTRAINT `fk_sr_taxes_sr_countries1` FOREIGN KEY (`country_id`) REFERENCES `resort_sr_countries` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION, ADD CONSTRAINT `fk_sr_taxes_sr_geo_states1` FOREIGN KEY (`geo_state_id`) REFERENCES `resort_sr_geo_states` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION;   ....and long list below...

It means that you have to use fresh/new database without any other older content inside it. In most cases those old data with Joomla and solidres installation makes such a problem. Please create a new MYSQL database in Hosting panel and try installation process again with those new details.