Jungle
Hello! What is it saying when you try to log in? Does it say wrong password or just refresh the page or is it on the game?
Make sure you've activated your account with the activation link you received via email. Once you've done this, it may take the server up to 48 hours to process it so you should be able to login then
I'm not sure you have tried it but maybe try change Wi-Fi? Or - if it isn't problem - change/create new account?
Try using a different browser or clearing your browsers cookies.