hi. i can´t log into my account with my username and password. Message: Authentication error: "Invalid username or password!" i verified my account with the QR scann method. so what ist going on? please help me. i got it. I had to change my password, and make it new without special character. I thik that it NOT a good idea, that i wanted to make a really save password, but i had to choose a less good one.!