TypeError: MerkleDistributor is not a constructor

[uy5cu71]

const merkleDistributor = new MerkleDistributor(provider, {
                          ^

TypeError: MerkleDistributor is not a constructor
    at file:///E:/node-dev/qwerty/claim.js:32:27
    at ModuleJob.run (node:internal/modules/esm/module_job:193:25)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:526:24)
    at async loadESM (node:internal/process/esm_loader:91:5)
    at async handleMainPromise (node:internal/modules/run_main:65:12)

[Sa7cez]

Same error :(