Help me

Hello Codester friends, I am new to the app. Congratulations you have better applications. I acquired one of you, I made changes to it but I have the problem that it does not work on all android systems but I install your demo if it works. The application is radio. My question is what is the correct way for it to work? Can I upload the app to the PlayStore? What is the correct way to generate the .APK because sharing on some smartphones appears as .zip?

For basic knowledge on how to publish an Android App Google is your friend. They are many guides out there.
As for the any issues with the app itself, please contact the seller of the app. You can do this by leaving a message in the support section on the page of the item.

Thank you so much!!

hello
i have an issue i download codester themes and somehow my computer crash down and i dont have anything now i have my codester account can i download my old files

You should be able to download your purchase again.