Be a bit more specific, show us screenshots of the issue, and make sure you're using the account registered here on this forum and make sure everything is typed to a tee, I believe the tool is case-sensitive, as the forum login should be as well.
I have the same problem. I'm having trouble opening 360revolution, I downloaded today, 17/06/2016, created the account on the site, but when I open the Poker Client digit login and password does not work. I have windows 7 64 bit. password and login with just letters and numbers.
The login has not been setup to run with 360Rev yet. We are currently working on getting this rectified and hopefully special characters will work this time!
It's now working, please try again now don't use a facebook signin account it needs to be an actual forum account.