Sometimes we are faced with a situation when a migration of our store to another hosting account. In such a situation besides migrating only the files and the database in order for the store to work properly, it is necessary to do a bit more.
The first step is to insert new data necessary for establishing a connection with the database into the file: app/etc/local.xml.
Next, after a correct execution of that task, you should modify the database inputs by changing the old address into a new one. In order to do so, you should go to the table core_config_dat and insert a correct site address in web/unsecure/base_url and web/secure/base_url.