I have the exact same problem, I've even tried to get an offline key to see if that would help but it didn't. Every other trainer I have works fine as well. I've redownloaded it at least 2 times, tried running from the zip file, running on Vista, 7 and 8 compatibility mode, restarting my computer, everything I can reasonably think off and I've made no progress. I've removed the old exe for the new one and renamed the 2 anti-cheat dlls. I've also redownloaded both .NET cores and installed them.
[Edited by gigantor138, 6/13/2020 4:01:59 PM]