Before you attempt to delete a domain from SolidCP, be sure you remove following in a particular order.
Once you remove above, follow below instructions to delete a domain from SolidCP.
1. Login to SolidCP. SolidCP is located at URL http://ccp.my-hosting-panel.com
2. In the next screen, you will see icons for all the services you can manage from the SolidCP. To delete a domain, under System section click Domains icon.
3. In the next screen, you will see the list of previously created domains. Click on a domain you want to remove.
4. Click on Delete button located at bottom. Click OK when SolidCP asks for the confirmation on delete operation.