LITE_SERVER_UNKNOWN

[heziyi]

I have encountered a problem, please help me solve it！

My source code:
`
import { HttpApi, fromNano, toNano, address } from "ton";

async function main() {
const apiKey = "15db77b27d8ddcc452cc3b77685f766d166bd076f94c4b1fceb50e5d5822ef12"
const endpoint = "https://testnet.toncenter.com/api/v2/jsonRPC";
const httpClient = new HttpApi(
endpoint,
{apiKey:apiKey}
);

const txs = await httpClient.getTransactions(address("0QDCXouS5I-cUPdoXD_9CqLxw1BD5DKSpBVnddfHB8MbajpI"), {
    limit: 100,
  });

console.log(txs)

}

main().finally(() => console.log("Exiting..."));
`

The error info:

data: {
ok: false,
error: 'LITE_SERVER_UNKNOWN: cannot compute block with specified transaction: cannot find block (0,c25e8b92e48f9c50) lt=29142750000001: lt not in db',
code: 500
}``