Glitch Node fastify has error when Importing modules

when I work on local maching theres no error, but when uploaded to glitch errors occure

import dotenv from "dotenv";

       ^^^^^^

SyntaxError: Unexpected identifier

    at Module._compile (internal/modules/cjs/loader.js:723:23)

    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)

    at Module.load (internal/modules/cjs/loader.js:653:32)

    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)

    at Function.Module._load (internal/modules/cjs/loader.js:585:3)

    at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)

    at startup (internal/bootstrap/node.js:283:19)

    at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)

The first thing to check is that you have included it in the list of dependencies in your package.json file.