Not activating

Run admin > Click play from the trainer > profit?

Still doesn't work

Heya! Could you check if your antivirus/firewall might be blocking PLITCH?

Yes, It isn't blocking plitch

Please try it with explicit admin rights (right-click on the desktop icon and then "run as administrator").

Also make sure to only play the game in offline mode.

I've had the same problem, follow these steps:

-Restart your PC and disable Steam autostart so that it doesn't start when you turn it on

-After restarting the PC, start Plitch in administrator mode

-Play the game

I hope it works for you too