Please provide us with wp-admin panel login details and we’ll enable custom.css file for you.
Concerning the question 8 you have to contact Woocommerce support as this is related to their configuration.
To fix the question 9 you need go to Blanco – Theme Settings > Product Page box > Product Page Banner, and press “minus” icon to remove the banner or upload your own.
Don’t forget to save changes.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.