I Need help with Gradle make project

I basiclly have a game and i want to export it but first I want to test it on my phone on android studio latest version everything is updates to the latest but the problem is that when I run the application I get this error and it’s meant to tell me where exactly the problem is but for somereason there is something off about it, it’s saying that there is a dot missing in manifest file in the 3rd line on the word “Downline” but the thing is i can’t add a dot in the whole line and even if i add a dot to the name “downline” the error doesn’t go away and i even thought i maybe went on the wrong line or file but it was the only file with that name and in that file there was only one line with the name “Downline” so i can’t be mistaken and a dot cannot be added and the troubleshoot keeps on saying I’am missing a dot

The Message That I Get

AILURE: Build failed with an exception.

> What went wrong:
Execution failed for task ':app:processDebugManifest'.
> Manifest merger failed : Package name 'Downline' at position AndroidManifest.xml:3:5-32 should contain at least one '.' (dot) character

Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

Get more help at [https://help.gradle.org](https://www.google.com/url?q=https://help.gradle.org&sa=D&usg=AFQjCNH7HUshxCf5q1XtEWo4S4omvRF7PA)