Trying to request number of holders on base network

Whenever I run the query to get the holders for a token on base network. Sometimes it comes back successfully and gets displayed on my webiste while other times I get the following error.

Error fetching holders data: TypeError: Cannot read properties of null (reading ‘0’)
at fetchHoldersData (webpack-internal:///(rsc)/./src/app/api/updateHolders/route.ts:54:50)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
Access token: ory_at_H84DGiuTkkNg9PB2NAi2Zk5QZisiiVBJNHqHE4seiqM.VwWnvKpXQ-cE4EBkkPTzaBrim5fcsiq99_3JI-hTFbg

How can I adjust my code so that this no longer happens ?

const fetchHoldersData = async () => {
  const access_token = process.env.NEXT_PUBLIC_BIT_QUERY_API_KEY;
  const url_graphql = "https://streaming.bitquery.io/graphql";
  const currentDate = new Date().toISOString().slice(0, 10);


  const query = `
    {
      EVM(dataset: archive, network: base) {
        TokenHolders(
          date: "${currentDate}"
          tokenSmartContract: "0x9a26F5433671751C3276a065f57e5a02D2817973"
          where: { Balance: { Amount: { gt: "0" } } }
        ) {
          uniq(of: Holder_Address)
        }
      }
    }
  `;

  try {
    const response = await fetch(url_graphql, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${access_token}`,
      },
      body: JSON.stringify({ query }),
    });

    if (!response.ok) {
      throw new Error(`HTTP error! status: ${response.status}`);
    }

    const data = await response.json();
    holdersCount = data.data.EVM.TokenHolders[0].uniq;
    console.log("Holders count updated:", holdersCount);
  } catch (error) {
    console.error('Error fetching holders data:', error);
    console.log("Access token:", process.env.NEXT_PUBLIC_BIT_QUERY_API_KEY);
  }
};