Getting issue after deploying app on IIS

[AK22121989]

Hi,

I have created a public app and it is running fine via ngrok url(shopify serve command) and deployed that app on IIS using reverse proxy but getting the below error:

TypeError: Cannot read property 'map' of undefined
at new AuthScopes (C:\Advertiser.Shopify\node_modules\@shopify\shopify-api\dist\auth\scopes\index.js:14:35)
at AuthScopes.equals (C:\Advertiser.Shopify\node_modules\@shopify\shopify-api\dist\auth\scopes\index.js:38:21)
at C:\Advertiser.Shopify\node_modules\@shopify\koa-shopify-auth\dist\src\verify-request\verify-token.js:23:79
at step (C:\Advertiser.Shopify\node_modules\tslib\tslib.js:133:27)
at Object.next (C:\Advertiser.Shopify\node_modules\tslib\tslib.js:114:57)
at fulfilled (C:\Advertiser.Shopify\node_modules\tslib\tslib.js:104:62)
at processTicksAndRejections (internal/process/task_queues.js:95:5)

Also, do we have any steps to deploy our app to IIS?