Test demo, I can log-in correctly using credentials, but I can't play these games because I do not have enough chips in my account to meet the buy-in requirement. what this means?.
You are using a host account when you are trying to make a player account under that host.
You create your account under the sign up form in the dashboard. THat assings you to a host. Then the host needs to have games to play and credit you with chips to play. (the test demo is for you to try to be the host)