Password Problems in making a new account

I've been trying to make an account for a while now but I keep receiving the same error message, "Invalid password. The password needs to between 6 and 20 characters. Registration failed! Please try again." The password I am attempting to set is 11 characters long. I have tried to set this on multiple occasions, hoping it is a one-time bug that will fix itself later, but no! This is probably the 10th time I've tried and it always yields the same result. It may be important to note that I already have a Geometry Dash account and am creating this one and plan to progress in case of my main getting hacked, deleted or some other event like that. But, reasons aside, I am using an alternative gmail, a different password and a different username. Please help!