If you updated a remote SQL server and lost your IIS config then you'd need to reinstall IIS, download the SolidCP installation files and on the setup of SolidCP, only select to install "SolidCP Server asp.net v4" and ensure that you use the same credentials as created during the initial setup.

Then configure application pools according to the setup guides, and recreate machine keys for the SolidCP site running on your SQL server.

The above applies to a remote sql server thats part of your Hosting Spaces and plans

Hi, trevors response worked, just reinstalled and moved the web config.

Thanks all