Google play rejection for "Device and Network Abuse"

My ionic app is rejected by google play for “Device and Network Abuse”

Reason:

An app distributed via Google Play may not modify, replace, or update itself using any method other than Google Play’s update mechanism. Likewise, an app may not download executable code (e.g. dex, JAR, .so files) from a source other than Google Play.

I had remove all extra plugins but this still happen.
(The app had been distributed in appstore, passed)

Could anyone help me to resolve the situation?

infos

Ionic:

Ionic CLI : 6.13.1 (/usr/local/lib/node_modules/@ionic/cli)
Ionic Framework : @ionic/angular 5.0.7
@angular-devkit/build-angular : 0.803.24
@angular-devkit/schematics : 8.3.29
@angular/cli : 8.3.29
@ionic/angular-toolkit : 2.2.0

Cordova:

Cordova CLI : 9.0.3 (cordova-lib@9.0.2)
Cordova Platforms : android 8.1.0, ios 6.1.1, ios1 6.1.1
Cordova Plugins : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 4.2.1, (and 8 other plugins)

Utility:

cordova-res : not installed
native-run : not installed

System:

ios-deploy : 1.9.1
NodeJS : v15.14.0 (/usr/local/Cellar/node/15.14.0/bin/node)
npm : 7.7.6
OS : macOS Big Sur