Your problem is something related to your computer only. It means the DLL injection has failed and/or the named pipe has not/could not be created.

This could be a problem of any security tool blocking it. Or the game has freezed and you tried to activated the trainer. Or the game is started as admin and hte trainer isn't. Or..or..or.

Also check if both required VC++ redistributables are installed which you find in the readme.