The system will encrypt the password as you are entering the password. This encryption will make it look like there are more characters than you entered. This will not affect the password itself, and you can use the password you create the next time you log into your account.
Now, if you try to log on with your existing password and you still can’t, you may want to try turning off your password auto fill program (remember your computer or device may have more than one program). You may also need to clear your cache and restart your browser. If all of this does not work, try using a different device.