Here are some more tips for the token error.
Also, don't use E-sys version 3.29 or higher. Tokenmaster didn't offer support for that in his last E-sys Launcher Premium 2.7.1.
If that doesn't work, you can also open a command prompt and try:
rd "%UserProfile%\Esys" /s
If that command helps, I'll add it to my script again in the next version.
Finally, if there is a BMW folder in C:\ProgramData (make sure hidden files and folders are shown), you could try to rename it to something like BMW.old and see if that works...
Please post some feedback if any of these steps worked for you (and if so, which one), so I can update the script!