Kindly follow below steps to change your admin password if you forget it.
1. Login to cPanel, access to File Manager.
2. Access to public_html/config folder or the path public_html/carnonical_path/config folder and open/edit setting.inc.php file.
3. Copy the cookie key.
4. Now, close the file and go to phpMyAdmin.
5. Open database table as shown as below:
6. Modify your password with paste the cookie key into the field and following with your new password.
7. After that, scroll down and click the "Go" button to reset your admin password.