Error on first run

[navarisun1982]

i have setup the script as described in the documentation..
added heygen api + openai API
here is what happened when I try first run with node server,js

internal/modules/cjs/loader.js:638
throw err;
^

Error: Cannot find module 'openai'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (/root/StreamingAvatar/server.js:2:16)
at Module._compile (internal/modules/cjs/loader.js:778:30)
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)

[navarisun1982]

i downloaded the first file and I saw Windows files, I work on ubuntu.
the second one windows defender prevents as it is defined it have viruses.

thx for fast reply