Not able to trade stocks with QuantConnect Algorithm because even though I have enough money in my account

I have an algorithm through QuantConnect and currently, I cannot make any trades. The get an error saying I do not have enough day trading buying power but I am not currently holding any stocks and have over 30k in my account. The algorithm had been working for about a week and this morning but stopped working at about 11am. I am live trading. I updated my API keys and even created a new project to see if that would help, it did not.