Cant access the Blender Scenes Interface B Icon

You may want to check that your “Settings” in the Verge3d App Manager (left hand menu) for the Application Folder. If you blend file is in a subfolder of that path the B icon should work Depending on your OS you can also hover over the blend icon and check the path.

I personally do not store my blend file with the V3D application.
You may accidentally upload or package the blend file. Blend files will often have multiple versions, backups, etc causing a folder to get very bloated and it’s best to keep your V3D folder as clean as possible. Also there is a chance that this folder can be deleted through the App Manager interface and I personally don’t want to take the risk of by blend file being deleted.

Hope this helps.