For that you can follow below steps:
- Login to cpanel.
- Select the “PHPMYADMIN” under “Databases” section.
- Select your database and find the table “mg_core_config_data” .
- Here find the edit button to edit column and update below lines in that.
Code:
web/unsecure/base_url
web/secure/base_url
- Update the new URL with http and click on Go button.