I used the latest patcher and still same error
so you currently have EFT (live) updated to latest 0.12.11.5.14715 ?
as per the FAQ on installing it.
1.) Have the contents from Live EFT Folder copied and pasted into a new folder (where you are going to keep SP EFT).
2.) Extract the downgrader's files (with 7zip, winRAR would cause unnecessary complications) into the folder (where you are going to have SP EFT) and run downgrader.exe.
2.5.) Make sure downgrader.exe keeps running until it is complete. It should let you know.
3.) Once that process is complete, extract all of SPT files that had been downloaded into the folder (where SP EFT is located).
4.) Run Server.exe and Launcher.exe. Enjoy.