Very likely your security software is deleting/quarantining the trainer exe file.
You need to create scan exclusions for the trainer and the Work folder. This Work folder is located here -> C:\Users\YourWindowsUserName\Cheathappens\
Look up your sec software's quarantine. Maybe you can restore and exclude the trainer directly from there, otherwise you have to do this manually.
If you don't know how to exclude files and folder, please visit our AV Notification page, pick your product and read/watch how it's done -> Link
Alright then, this is regarding the trainer. Not this trainer but a potential future rendition of it.
Basically what it boils down to is:
Will we still be able to train No Man's Sky after the release of NEXT which is set to bring a working actual multiplayer to the table?