The "%1" item in a site configuration change request in delta site control file %2 does not specify a site code. This site ...

%11The "%1" item in a site configuration change request in delta site control file %2 does not specify a site code. This site configuration change request and the remaining change requests in the file are unusable.%12

Possible cause: Most likely, the file was corrupted during network transmission, which might occur periodically, depending on the performance of your network. If this happens repeatedly, it could be the result of defective software.
Solution: If you suspect a software defect, refer to your SMS documentation or the Microsoft Knowledge Base for further troubleshooting information.%0