Not able upload the same App into LG Seller Lounge

[email_r_TgsdhnetvK]

Hi, I am trying to upload the sample web app into LG Seller Lounge but getting the error "No App File".
But sample app can be uploaded into LG developer account.

and why this error is showing for same app while uploading into LG Seller Lounge.

Here just I want to understand the app submission process.

and please let me know how I can test the application by uploading into Store for testing without USB connect process.

please help on this.