You are receiving this error because the password you chose needs to be more secure. Please create your password using 8 characters or more. It can be any combination of letters, numbers, and symbols (ASCII-standard characters only). Accents and accented characters aren't supported. 
You can't use a password that:
  • Is particularly weak. Example: "password123" 
  • You've used before on your account
  • Starts or ends with a blank space