App name and .exe file name in the root of ZIP must be same. You have two options to ensure this:

Option 1. Set the app name in the Control Panel to match the .exe file name in the root of the ZIP.

Option 2. Rename the .exe file in the root of the ZIP to match the app name

Make sure you don't create any extra folders when zipping the files. The main exe file should be placed directly at the root of the ZIP, not inside any folder. For detailed instructions on how to zip the files correctly, please refer to this documentation.