error when launching

[pillkia]

While run it by following the README,

$ sudo npm install

[sudo] password for oem:

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found 0 vulnerabilities

$ node index.js

it says:

import pkg from 'nostr-tools'
       ^^^
SyntaxError: The requested module 'nostr-tools' does not provide an export named 'default'
    at ModuleJob._instantiate (node:internal/modules/esm/module_job:123:21)
    at async ModuleJob.run (node:internal/modules/esm/module_job:189:5)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:530:24)
    at async loadESM (node:internal/process/esm_loader:91:5)
    at async handleMainPromise (node:internal/modules/run_main:65:12)