Open IIS Manager and expand the computer name, click on the website folder on the left side, look on the right side and take note of the Identifier column. This is the site number. In the event log, take note of the "site" number, and find that site in IIS. Make sure you are not using the same IP and port. If you have multiple SSL websites, you will need to assign an additional IP to the server to use for separate websites.
If you do not find the site number in IIS that you pulled from the event log, then you will need to run IIS Metabase Explorer to delete it. It had existed at some point, but when it was deleted from the IIS manager, it was not correctly purged from the metadata. You will need to manually clear the site. To do this, you need to install the Resource Kit Tools on to the server. After you have installed the tools perform the following:
- Open IIS Metabase Explorer.
- Expand the server name.
- Expand LM.
- Expand W3SVC.
Here you will see all the web server site numbers. Find the one that came from the event log and delete it.