Your trade was placed during a market-wide trading halt. There are times where the market may submit a market-wide trading halt on specific stocks. Trading halts are typically enacted in anticipation of a news announcement, to correct an order imbalance, as a result of a technical glitch, or due to regulatory concerns. Halts may also be triggered by severe downward moves, in what are called circuit breakers or curbs.
When this occurs, no trades, in this specific stock, are able to be executed. Once trading commences, pending trades will be executed in the order they were placed. You should also be able to submit new trades. Note that the price of securities can fluctuate between the start of a trading halt and the execution of a security after the trading halt.
For more information please view our Help Center Article: Circuit Breaker and Trading Halt