Important Point about Multi store in Opencart
Main Store should to be in root folder like /public_html/ While adding new store in Opencart Admin URL must to be like this http://blumats.devinlabs.com/ not like this http://blumats.devinlabs.com Since by default opencart not assign any product or store so you would have to assign manually categories,product,module each thing sepreatly to new store.