Fixed an important error in the loading system

The game's source code is unchanged since 22 August 2025 (version released 1 September 2025), so it seems that the game itself will remain the final version. But I found that there was an error in the loaders of some versions of the game that caused a few bytes to be overwritten after loading the game. This is an important thing that can cause the game to crash, so I fixed these loaders. Furthermore, the audio cassette tape version lacked a check for correct loading, which could also cause errors in the game, so I fixed this error in the loader as well. Since I have versions for a lot of loading media and I am not sure what all has changed since the previous update, I uploaded all files again to be sure.

Sorry about that, this is my first game loaded using assembler (machine code), moreover my first time for various loading media. These problems are also related to the fact that nowadays most people no longer use real old computers with tapes and floppy disks, so there was less chance of loading problems and therefore also of finding the sources of these problems. But hopefully I now know all the necessary tricks to prevent this from happening in the next game.

And as if that wasn't enough, when I uploaded these files on 28 October 2025, I accidentally used a test version of the game with invulnerability for the ZX Spectrum tape (TAP) version. I replaced it with the correct version on the same day evening (28 October 2025), so hopefully everything is fine now.