Tried your new file but on a different system with the command LZX -x x amikitxe-vampire AmiKit: and this time worked fine. 26676 files tested, all files ok. I think it was the AmigaForever AmigaSys i used the first few times which caused the problem. After i successfully extracted the file on my other system, i tried again on AmigaSYS and got the error again so i think there is the issue.
Anyway thanks a lot for your immediate help. I wait now for my V1200 to continue with the installation. Have already copied the copyright files (Amiga OS 3.1.4 & 188.8.131.52 & Locale and Picasso 96 & Roadshow 1.14) in the Expansion/Install folder and wait for the Vampire.
Have a good evening